1
                                                                     EXHIBIT 4.6





                       [FORM OF FACE OF INITIAL SECURITY]

                           [Global Securities Legend]

                  UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR
SECURITIES IN DEFINITIVE FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A
WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A NOMINEE OF THE
DEPOSITORY TO THE DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITORY OR A
NOMINEE OF SUCH SUCCESSOR DEPOSITORY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY ("DTC"), TO THE
COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR
TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO.,
HAS AN INTEREST HEREIN.

                         [Restricted Securities Legend]


                  THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT
OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS.
NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED,
SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE
ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT
SUBJECT TO, REGISTRATION.

                  THE HOLDER OF THIS SECURITY BY ITS ACCEPTANCE HEREOF AGREES TO
OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE DATE (THE "RESALE
RESTRICTION TERMINATION DATE") WHICH IS TWO YEARS AFTER THE LATER OF THE
ORIGINAL ISSUE DATE HEREOF AND THE LAST DATE ON WHICH THE 


   2
                                                                               2


COMPANY OR ANY AFFILIATE OF THE COMPANY WAS THE OWNER OF THIS SECURITY (OR ANY
PREDECESSOR OF SUCH SECURITY) ONLY (A) TO THE COMPANY, (B) PURSUANT TO A
REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES
ACT, (C) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE
144A UNDER THE SECURITIES ACT, TO A PERSON IT REASONABLY BELIEVES IS A
"QUALIFIED INSTITUTIONAL BUYER" AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT
THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED
INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN
RELIANCE ON RULE 144A, (D) PURSUANT TO OFFERS AND SALES THAT OCCUR OUTSIDE THE
UNITED STATES WITHIN THE MEANING OF REGULATIONS UNDER THE SECURITIES ACT, (E)
TO AN INSTITUTIONAL "ACCREDITED INVESTOR" WITHIN THE MEANING OF RULE 501(A)(1),
(2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS
OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL ACCREDITED INVESTOR, IN
EACH CASE IN A TRANSACTION INVOLVING A MINIMUM PURCHASE PRICE OF $250,000 FOR
SUCH SECURITIES FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO OR FOR OFFER OR
SALE IN CONNECTION WITH ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, OR
(F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS
OF THE SECURITIES ACT, SUBJECT TO THE COMPANY'S AND THE TRUSTEE'S RIGHT PRIOR TO
ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSE (D), (E) OR (F) TO REQUIRE
THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION OR OTHER INFORMATION
SATISFACTORY TO EACH OF THEM, AND IN THE CASE OF ANY OF THE FOREGOING CASES, A
CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THE OTHER SIDE OF THIS SECURITY
IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE COMPANY AND THE TRUSTEE.
THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE RESALE
RESTRICTION TERMINATION DATE.



                                NC MERGER COMPANY
   3
                                                                               3


                    11-1/8% SENIOR SUBORDINATED NOTE DUE 2007


No. #                                                          CUSIP No. [     ]
                                                                        $[     ]


                  NC MERGER COMPANY, a Wisconsin corporation, promises to pay to
[     ], or registered assigns, the principal sum of $[     ] on May 1, 2007.

                  Interest Payment Dates: May 1 and November 1

                  Record Dates:           April 15 and October 15

                  Additional provisions of this Security are set forth on the
other side of this Security.


Dated:  April 30, 1997

                                                     NC MERGER COMPANY,

                                                     by

                                                        ________________________
                                                        Name:
                                                        Title:



                                                        ________________________
                                                        Name:
                                                        Title:


TRUSTEE'S CERTIFICATE OF
    AUTHENTICATION
   4
                                                                               4


UNITED STATES TRUST COMPANY
      OF NEW YORK


  as Trustee, certifies                                [Seal]
  that this is one of
  the Securities referred
  to in the Indenture,

  by
    ________________________________
         Authorized Signatory


                                               Assumed and Guaranteed
                                               pursuant to the First
                                               Supplemental Indenture

                                               NEENAH CORPORATION,

                                               by

                                                  ______________________________
                                                  Name:
                                                  Title:


                                               NEENAH FOUNDRY COMPANY,

                                               by

                                                  ______________________________
                                                  Name:
                                                  Title:


                                               NEENAH TRANSPORT, INC.,
   5
                                                                               5


                                               by

                                                  ______________________________
                                                  Name:
                                                  Title:


                                               HARTLEY CONTROLS CORPORATION,

                                               by

                                                  ______________________________
                                                  Name:
                                                  Title:
   6
                                                                               6



                   [FORM OF REVERSE SIDE OF INITIAL SECURITY]

                    11-1/8% Senior Subordinated Note due 2007

1.  Interest

                  NC Merger Company, a Wisconsin corporation (such corporation,
and its successors and assigns under the Indenture hereinafter referred to,
being herein called the "Company"), promises to pay interest on the principal
amount of this Security at the rate per annum shown above. The Company and the
Guarantor Subsidiaries will use their best efforts to have the Exchange Offer
Registration Statement or, if applicable, the Shelf Registration Statement (each
a "Registration Statement") declared effective by the Commission as promptly as
practicable after the filing thereof. If (i) the Shelf Registration Statement or
Exchange Offer Registration Statement, as applicable under the Exchange and
Registration Rights Agreement is not filed with the Commission on or prior to 45
days after the Issue Date, (ii) the Exchange Offer Registration Statement or, as
the case may be, the Shelf Registration Statement, is not declared effective
within 105 days after the Issue Date, (iii) the Exchange Offer is not
consummated on or prior to 135 days after the Issue Date, or (iv) the Shelf
Registration Statement is filed and declared effective within 105 days after the
Issue Date but shall thereafter cease to be effective (at any time that the
Company is obligated to maintain the effectiveness thereof) without being
succeeded within 30 days by an additional Registration Statement filed and
declared effective (each such event referred to in clauses (i) through (iv), a
"Registration Default"), the Company will pay liquidated damages to each holder
of Transfer Restricted Securities, during the period of such Registration
Default, in an amount equal to $0.192 per week per $1,000 principal amount of
the Securities constituting Transfer Restricted Securities held by such holder
until the applicable Registration Statement is filed
   7
                                                                               7


or declared effective, the Exchange Offer is consummated or the Shelf
Registration Statement again becomes effective, as the case may be. All accrued
liquidated damages shall be paid to holders in the same manner as interest
payments on the Securities on semi-annual payment dates which correspond to
interest payment dates for the Securities. Following the cure of all
Registration Defaults, the accrual of liquidated damages will cease. The Trustee
shall have no responsibility with respect to the determination of the amount of
any such liquidated damages. For purposes of the foregoing, "Transfer Restricted
Securities" means each Initial Security until (i) the date on which such Initial
Security has been exchanged for a freely transferable Exchange Security in the
Exchange Offer, (ii) the date on which such Initial Security has been
effectively registered under the Securities Act and disposed of in accordance
with the Shelf Registration Statement or (iii) the date on which such Initial
Security is distributed to the public pursuant to Rule 144 under the Securities
Act or is saleable pursuant to Rule 144(k) under the Securities Act.

                  The Company will pay interest and liquidated damages, if any,
semiannually on May 1 and November 1 of each year. Interest on the Securities
will accrue from the most recent date to which interest has been paid or, if no
interest has been paid, from April 30, 1997. Interest will be computed on the
basis of a 360-day year of twelve 30-day months. The Company shall pay interest
on overdue principal at the rate borne by the Securities plus 1% per annum, and
it shall pay interest on overdue installments of interest at the same rate to
the extent lawful.


2.  Method of Payment

                  The Company will pay interest (except defaulted interest) on
and liquidated damages, if any, in respect of the Securities to the Persons who
are registered holders of Securities at the close of business on the April 15 or
   8
                                                                               8


October 15 next preceding the interest payment date even if Securities are
canceled after the record date and on or before the interest payment date.
Holders must surrender Securities to a Paying Agent to collect principal
payments. The Company will pay principal and interest in money of the United
States that at the time of payment is legal tender for payment of public and
private debts. However, the Company may pay principal and interest by check
payable in such money or by wire transfer of federal funds.
   9
                                                                               9


3.  Paying Agent and Registrar

                  Initially, UNITED STATES TRUST COMPANY OF NEW YORK, a New York
banking corporation ("Trustee"), will act as Paying Agent and Registrar. The
Company may appoint and change any Paying Agent, Registrar or co-registrar
without notice to the Holders. The Company or any of its domestically
incorporated Wholly Owned Subsidiaries may act as Paying Agent, Registrar or
co-registrar.


4.  Indenture and First Supplemental Indenture

                  The Company issued the Securities under an Indenture dated as
of April 30, 1997 ("Indenture"), between the Company and the Trustee. The terms
of the Securities include those stated in the Indenture and those made part of
the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.C.
Sections 77aaa-77bbbb) as in effect on the date of the Indenture (the
"Act"). Terms defined in the Indenture and not defined herein have the meanings
ascribed thereto in the Indenture. The Securities are subject to all such terms,
and Securityholders are referred to the Indenture and the Act for a statement of
those terms.

                  Pursuant to the First Supplemental Indenture dated as of April
30, 1997, among Neenah Corporation, the Initial Guarantors and the Trustee,
Neenah Corporation assumed the Company's obligations under the Indenture and the
Securities and each of the Initial Guarantors agreed to guarantee those
obligations under the Indenture and the Securities.

                  The Securities are unsecured senior subordinated obligations
of the Company limited to $150,000,000 aggregate principal amount at any one
time outstanding (subject to Section 2.07 of the Indenture). This Security is
one of the Initial Securities referred to in the Indenture. The Securities
include the Initial Securities and any Exchange Securities issued in exchange
for the Initial Securities
   10
                                                                              10


pursuant to the Indenture. The Initial Securities and the Exchange Securities
are treated as a single class of securities under the Indenture. The Indenture
imposes certain limitations on the Incurrence of Indebtedness by the Company and
its Restricted Subsidiaries; the payment of dividends on, and redemption of,
Capital Stock of the Company and its Restricted Subsidiaries and the redemption
of certain Subordinated Obligations of the Company and its Restricted
Subsidiaries; Investments; sales of assets and Restricted Subsidiary Capital
Stock; certain transactions with Affiliates of the Company; the sale or issuance
of Capital Stock of the Restricted Subsidiaries; the creation of Liens; the
lines of business in which the Company and its Restricted Subsidiaries may
operate; Sale/Leaseback Transactions and consolidations, mergers and transfers
of all or substantially all of the Company's assets. In addition, the Indenture
prohibits certain restrictions on distributions and dividends from Restricted
Subsidiaries.

                  To guarantee the due and punctual payment of the principal and
interest, if any, on the Securities and all other amounts payable by the Company
under the Indenture and the Securities when and as the same shall be due and
payable, whether at maturity, by acceleration or otherwise, according to the
terms of the Securities and the Indenture (as supplemented by the First
Supplemental Indenture), the Initial Guarantors have guaranteed the Company's
obligations under the Indenture on a senior subordinated basis pursuant to the
terms of the Indenture.


5.  Optional Redemption

                  Except as set forth in the next two paragraphs, the Securities
may not be redeemed prior to May 1, 2002. On and after that date, the Company
may redeem the Securities in whole at any time or in part from time to time at
the following redemption prices (expressed in percentages of principal amount),
plus accrued and unpaid interest, if any, 
   11
                                                                              11


to the redemption date (subject to the right of Holders of record on the
relevant record date to receive interest due on the relevant interest payment
date that is on or prior to the date of redemption), if redeemed during the
12-month period beginning on or after May 1 of the years set forth below:



                                             Redemption
Period                                         Price   
- ------                                       ----------                                                       
                                                
2002....................................      105.5625%
2003....................................      103.7083%
2004....................................      101.8542%
2005 and thereafter.....................      100.0000%


                  Notwithstanding the foregoing, at any time prior to May 1,
2000, the Company may redeem in the aggregate up to 40% of the original
aggregate principal amount of Securities with the proceeds of one or more Public
Equity Offerings by the Company at a redemption price (expressed as a percentage
of principal amount) of 111.125% plus accrued interest, if any, to the
redemption date (subject to the right of Holders of record on the relevant
record date to receive interest due on the relevant interest payment date);
provided, however, that at least 60% of the original aggregate principal amount
of the Securities must remain outstanding after each such redemption.

                  At any time prior to May 1, 2002, the Securities may be
redeemed, in whole or in part, at the option of the Company within 180 days
after a Change of Control, at a redemption price equal to the sum of (i) the
principal amount thereof plus (ii) accrued and unpaid interest, if any, to the
redemption date (subject to the right of holders of record on the relevant
record date to receive interest due on the relevant interest payment date that
is on or prior to the date of redemption) plus (iii) the Applicable Premium.
   12

                                                                              12

6.  Notice of Redemption

                  Notice of redemption will be mailed by first-class mail at
least 30 days but not more than 60 days before the redemption date to each
Holder of Securities to be redeemed at his registered address. Securities in
denominations larger than $1,000 may be redeemed in part but only in whole
multiples of $1,000. If money sufficient to pay the redemption price of and
accrued interest on all Securities (or portions thereof) to be redeemed on the
redemption date is deposited with the Paying Agent on or before the redemption
date and certain other conditions are satisfied, on and after such date interest
ceases to accrue on such Securities (or such portions thereof) called for
redemption.


7.  Put Provisions

                  Upon a Change of Control, unless the Company has elected to
redeem the Securities pursuant to paragraph 5, any Holder of Securities will
have the right, subject to certain conditions specified in the Indenture, to
cause the Company to repurchase all or any part of the Securities of such Holder
at a purchase price equal to 101% of the principal amount of the Securities to
be repurchased plus accrued and unpaid interest, if any, to the date of purchase
(subject to the right of Holders of record on the relevant record date to
receive interest due on the relevant interest payment date that is on or prior
to the date of purchase) as provided in, and subject to the terms of, the
Indenture.


8.  Subordination

                  The Securities are subordinated to Senior Indebtedness of the
Company, as defined in the Indenture. To the extent provided in the Indenture,
Senior Indebtedness of the Company must be paid before the Securities may be
   13
                                                                              13


paid. In addition, each Subsidiary Guaranty is subordinated to Senior
Indebtedness of the relevant Guarantor Subsidiary, as defined in the Indenture.
The Company and each Guarantor Subsidiary agrees, and each Securityholder by
accepting a Security agrees, to the subordination provisions contained in the
Indenture and authorizes the Trustee to give it effect and appoints the Trustee
as attorney-in-fact for such purpose.


9.   Denominations; Transfer; Exchange

                  The Securities are in registered form without coupons in
denominations of $1,000 and whole multiples of $1,000. A Holder may transfer or
exchange Securities in accordance with the Indenture. Upon any transfer or
exchange, the Registrar and the Trustee may require a Holder, among other
things, to furnish appropriate endorsements or transfer documents and to pay
any taxes required by law or permitted by the Indenture. The Registrar need not
register the transfer of or exchange any Securities selected for redemption
(except, in the case of a Security to be redeemed in part, the portion of the
Security not to be redeemed) or to transfer or exchange any Securities for a
period of 15 days prior to a selection of Securities to be redeemed or 15 days
before an interest payment date.

10.  Persons Deemed Owners

                  The registered Holder of this Security may be treated as the
owner of it for all purposes.


11.  Unclaimed Money

                  If money for the payment of principal or interest remains
unclaimed for two years, the Trustee or Paying Agent shall pay the money back to
the Company at its written 
   14
                                                                              14


request unless an abandoned property law designates another Person. After any
such payment, Holders entitled to the money must look only to the Company and
not to the Trustee for payment.


12.  Discharge and Defeasance

                  Subject to certain conditions, the Company at any time may
terminate some or all of its obligations under the Securities and the Indenture
if the Company deposits with the Trustee money or U.S. Government Obligations
for the payment of principal and interest on the Securities to redemption or
maturity, as the case may be.


13.  Amendment, Waiver

                  Subject to certain exceptions set forth in the Indenture, (i)
the Indenture or the Securities may be amended with the written consent of the
Holders of at least a majority in principal amount outstanding of the Securities
and (ii) any past default or noncompliance with any provision may be waived
with the consent of the Holders of a majority in principal amount then
outstanding of the Securities. Subject to certain exceptions set forth in the
Indenture, without the consent of any Securityholder, the Company and the
Trustee may amend the Indenture or the Securities to cure any ambiguity,
omission, defect or inconsistency, or to comply with Article V of the Indenture,
or to provide for uncertificated Securities in addition to or in place of
certificated Securities, or to add guarantees with respect to the Securities or
to secure the Securities, or to release Guarantor Subsidiaries when permitted by
the Indenture, or to add additional covenants or surrender rights and powers
conferred on the Company, or to comply with any request of the SEC in connection
with qualifying the Indenture under the Act, or to make any other change that
does not adversely affect the rights of any
   15
                                                                              15


Securityholder, or to provide for the issuance and authorization of the Exchange
Securities.


14.  Defaults and Remedies

                  Under the Indenture, Events of Default include (i) default for
30 days in payment of interest on the Securities; (ii) default in payment of
principal on the Securities at maturity, upon redemption pursuant to paragraph
5 of the Securities, or failure by the Company to redeem or purchase, upon
declaration or otherwise (whether or not such payment is prohibited by Article
X), Securities when required; (iii) failure by the Company or any Guarantor
Subsidiary to comply with other agreements in the Indenture or the Securities,
in certain cases subject to notice and lapse of time; (iv) certain accelerations
(including failure to pay within any grace period after final maturity) of other
Indebtedness of the Company if the amount accelerated (or so unpaid) exceeds
$5,000,000 or its foreign currency equivalent; (v) certain events of bankruptcy,
insolvency or reorganization with respect to the Company and its Restricted
Subsidiaries; (vi) certain judgments or decrees not covered by insurance for the
payment of money in excess of $5,000,000 or its foreign currency equivalent
against the Company or a Restricted Subsidiary; and (vii) a Subsidiary Guaranty
ceasing to be in full force and effect (other than in accordance with its terms)
or any Guarantor Subsidiary denies or disaffirms its obligations under the
Indenture or any Subsidiary Guaranty and such Default continues for 10 days. If
an Event of Default occurs and is continuing, the Trustee or the Holders of at
least 25% in principal amount of the Securities may declare all the Securities
to be due and payable immediately. Certain events of bankruptcy or insolvency
are Events of Default which will result in the Securities being due and payable
immediately upon the occurrence of such Events of Default.
   16
                                                                              16


                  Securityholders may not enforce the Indenture or the
Securities except as provided in the Indenture. The Trustee may refuse to
enforce the Indenture or the Securities unless it receives reasonable indemnity
or security. Subject to certain limitations, Holders of a majority in principal
amount of the Securities may direct the Trustee in its exercise of any trust or
power. The Trustee may with hold from Securityholders notice of any continuing
Default (except a Default in payment of principal, premium, if any, or interest)
if and so long as a committee of its Trust Officers in good faith determines
that withholding notice is in the interest of the Holders.


15.  Trustee Dealings with the Company

                  Subject to certain limitations imposed by the Act, the Trustee
under the Indenture, in its individual or any other capacity, may become the
owner or pledgee of Securities and may otherwise deal with and collect
obligations owed to it by the Company or its Affiliates and may other wise deal
with the Company or its Affiliates with the same rights it would have if it were
not Trustee.


16.  No Recourse Against Others

                  A director, officer, employee or stockholder, as such, of the
Company or any Guarantor Subsidiary shall not have any liability for any
obligations of the Company or a Guarantor Subsidiary under the Securities or the
Indenture or for any claim based on, in respect of or by reason of such
obligations or their creation. By accepting a Security, each Securityholder
waives and releases all such liability. The waiver and release are part of the
consideration for the issue of the Securities.


17.  Governing Law
   17
                                                                              17


                  THE SECURITIES SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, BUT WITHOUT GIVING EFFECT TO
APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF
THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.


18.  Authentication

                  This Security shall not be valid until an authorized
signatory of the Trustee (or an authenticating agent) manually signs the
certificate of authentication on the other side of this Security.


19.  Abbreviations

                  Customary abbreviations may be used in the name of a
Securityholder or an assignee, such as TEN COM (=tenants in common), TENENT
(=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship
and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to
Minors Act).


20.  CUSIP Numbers

                  Pursuant to a recommendation promulgated by the Committee on
Uniform Security Identification Procedures the Company has caused CUSIP numbers
to be printed on the Securities and has directed the Trustee to use CUSIP
numbers in notices of redemption as a convenience to Securityholders. No
representation is made as to the accuracy of such numbers either as printed on
the Securities or as contained in any notice of redemption and reliance may be
placed only on the other identification numbers placed thereon.
   18
                                                                              18


                  THE COMPANY WILL FURNISH TO ANY SECURITYHOLDER UPON WRITTEN
REQUEST AND WITHOUT CHARGE TO THE SECURITY HOLDER A COPY OF THE INDENTURE WHICH
HAS IN IT THE TEXT OF THIS SECURITY IN LARGER TYPE. REQUESTS MAY BE MADE TO:

                                NC MERGER COMPANY
                               2121 BROOKS AVENUE
                                NEENAH, WI 54957

                      ATTENTION OF CHIEF FINANCIAL OFFICER
   19
                                                                              19


                                 ASSIGNMENT FORM




To assign this Security, fill in the form below:

I or we assign and transfer this Security to


         (Print or type assignee's name, address and zip code)

         (Insert assignee's soc. sec. or tax I.D. No.)


and irrevocably appoint             agent to transfer this Security on the books
of the Company. The agent may substitute another to act for him.


________________________________________________________________________________

Date: _____________________ Your Signature: ____________________________________

Signature Guarantee:____________________________________________________________
                    (Signature must be guaranteed by a
                    participant in a recognized signature
                    guarantee medallion program)
________________________________________________________________________________

Sign exactly as your name appears on the other side of this Security.
   20
                                                                              20


          CERTIFICATE TO BE DELIVERED UPON EXCHANGE OR REGISTRATION OF
                         TRANSFER RESTRICTED SECURITIES


This certificate relates to $_________ principal amount of Securities held in
(check applicable space) ____ book-entry or _____ definitive form by the
undersigned.

The undersigned (check one box below):

[ ]      has requested the Trustee by written order to deliver in exchange for
         its beneficial interest in the Global Security held by the Depository a
         Security or Securities in definitive, registered form of authorized
         denominations and an aggregate principal amount equal to its beneficial
         interest in such Global Security (or the portion thereof indicated
         above);

[ ]      has requested the Trustee by written order to exchange or register the 
         transfer of a Security or Securities.

In connection with any transfer of any of the Securities evidenced by this
certificate occurring prior to the expiration of the period referred to in Rule
144(k) under the Securities Act after the later of the date of original issuance
of such Securities and the last date, if any, on which such Securities were
owned by the Company or any Affiliate of the Company, the undersigned confirms
that such
   21
                                                                              21


Securities are being transferred in accordance with its terms:

CHECK ONE BOX BELOW:

                  (1)      [ ]      to the Company; or

                  (2)      [ ]      pursuant to an effective registration
                                    statement under the Securities Act of 1933;
                                    or

                  (3)      [ ]      inside the United States to a "qualified
                                    institutional buyer" (as defined in Rule
                                    144A under the Securities Act of 1933) that
                                    purchases for its own account or for the
                                    account of a qualified institutional buyer
                                    to whom notice is given that such transfer
                                    is being made in reliance on Rule 144A, in
                                    each case pursuant to and in compliance with
                                    Rule 144A under the Securities Act of 1933;
                                    or

                  (4)      [ ]      outside the United States in an offshore
                                    transaction within the meaning of Regulation
                                    S under the Securities Act in compliance
                                    with Rule 904 under the Securities Act of
                                    1933; or

                  (5)      [ ]      pursuant to another available exemption from
                                    registration provided by Rule 144 under the
                                    Securities Act of 1933.
   22
                                                                              22


         Unless one of the boxes is checked, the Trustee will refuse to register
         any of the Securities evidenced by this certificate in the name of any
         person other than the registered holder thereof; provided, however,
         that if box (4) or (5) is checked, the Trustee may require, prior to
         registering any such transfer of the Securities, such legal opinions,
         certifications and other information as the Company has reasonably
         requested to confirm that such transfer is being made pursuant to an
         exemption from, or in a transaction not subject to, the registration
         requirements of the Securities Act of 1933, such as the exemption
         provided by Rule 144 under such Act.




                                                    ____________________________
                                                              Signature

Signature Guarantee:

______________________________________              ____________________________
Signature must be guaranteed                                  Signature


________________________________________________________________________________


              TO BE COMPLETED BY PURCHASER IF (3) ABOVE IS CHECKED.

                  The undersigned represents and warrants that it is purchasing
this Security for its own account or an account with respect to which it
exercises sole investment discretion and that it and any such account is a
"qualified institutional buyer" within the meaning of Rule 144A under the
Securities Act of 1933, and is aware that the sale to it is being made in
reliance on Rule 144A and acknowledges that it has received such information
regarding the Company as the undersigned has requested pursuant to Rule 144A or
has
   23
                                                                              23


determined not to request such information and that it is aware that the
transferor is relying upon the undersigned's foregoing representations in order
to claim the exemption from registration provided by Rule 144A.



Dated: ________________                           ______________________________
                                                  NOTICE:  To be executed by
                                                           an executive officer
   24
                                                                              24


              SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY

                  The following increases or decreases in this Global Security
have been made:


                                                                           
Date of       Amount of decrease      Amount of increase      Principal amount         Signature of
Exchange      in Principal            in Principal            of this Global           authorized officer
              Amount of this          Amount of this          Security following       of Trustee or
              Global Security         Global Security         such decrease or         Securities
                                                              increase)                Custodian

   25
                                                                              25


                       OPTION OF HOLDER TO ELECT PURCHASE

                  If you want to elect to have this Security purchased by the
Company pursuant to Section 4.06 or 4.08 of the Indenture, check the box:

                                       [ ]

                  If you want to elect to have only part of this Security
purchased by the Company pursuant to Section 4.06 or 4.08 of the Indenture,
state the amount: $


Date: ________________________ Your Signature: _________________________________
                               (Sign exactly as your name appears
                               on the other side of the Security)


Signature Guarantee:____________________________________________________________
                    (Signature must be guaranteed by a
                    participant in a recognized signature
                    guarantee medallion program)
   26
                                                                       EXHIBIT B





                       [FORM OF FACE OF EXCHANGE SECURITY]

                           [Global Securities Legend]


                  UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR
SECURITIES IN DEFINITIVE FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A
WHOLE BY THE DEPOSITORY TO A NOMINEE OF THE DEPOSITORY OR BY A NOMINEE OF THE
DEPOSITORY TO THE DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITORY OR A
NOMINEE OF SUCH SUCCESSOR DEPOSITORY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY ("DTC") TO THE COMPANY
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE
OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE OR TO
ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS
AN INTEREST HEREIN. 2/


                               NEENAH CORPORATION

               11-1/8% SERIES B SENIOR SUBORDINATED NOTE DUE 2007

No.                                                        Cusip No. [         ]
                                                                $[         ]

                  NEENAH CORPORATION, a Wisconsin corporation, promises to pay
to [     ], or registered assigns, the principal sum of $        on May 1, 2007.

                  Interest Payment Dates: May 1 and November

                  Record Dates:           April 15 and October 15

- ----------
                  2 This paragraph should only be added if the Security is
issued in global form.
   27
                                                                               2


                  Additional provisions of this Security are set forth on the
other side of this Security.

Dated:

                                 NEENAH CORPORATION,

                                 by

                                     __________________________
                                     Name:
                                     Title:

                                     __________________________
                                     Name:
                                     Title:


TRUSTEE'S CERTIFICATE OF
     AUTHENTICATION

UNITED STATES TRUST COMPANY
      OF NEW YORK


         as Trustee, certifies            [Seal]
         that this is one of
         the Securities referred
         to in the Indenture,

         by
           _____________________________
               Authorized Signatory
   28
                                                                               3


                   [FORM OF REVERSE SIDE OF EXCHANGE SECURITY]

               11-1/8% Series B Senior Subordinated Note due 2007


1.  Interest

                  NEENAH CORPORATION, a Wisconsin corporation (such corporation,
and its successors and assigns under the Indenture hereinafter referred to,
being herein called the "Company"), promises to pay interest on the principal
amount of this Security at the rate per annum shown above. The Company will pay
interest and liquidated damages, if any, semiannually on May 1 and November 1 of
each year. Interest on the Securities will accrue from the most recent date to
which interest has been paid or, if no interest has been paid, from April 30,
1997. Interest will be computed on the basis of a 360-day year of twelve 30-day
months. The Company shall pay interest on overdue principal at the rate borne by
the Securities plus 1% per annum, and it shall pay interest on overdue
installments of interest at the same rate to the extent lawful.


2.  Method of Payment

                  The Company will pay interest on the Securities (except
defaulted interest) to the Persons who are registered holders of Securities at
the close of business on the April 15 or October 15 next preceding the interest
payment date even if Securities are canceled after the record date and on or
before the interest payment date. Holders must surrender Securities to a Paying
Agent to collect principal payments. The Company will pay principal and interest
in money of the United States that at the time of payment is legal tender for
payment of public and private debts. However, the Company may pay principal and
interest by check payable in such money or by wire transfer of federal funds.
   29
                                                                               4


3.  Paying Agent and Registrar

                  Initially, UNITED STATES TRUST COMPANY OF NEW YORK, a New York
banking corporation ("Trustee"), will act as Paying Agent and Registrar. The
Company may appoint and change any Paying Agent, Registrar or co-registrar
without notice to the Holders. The Company or any of its domestically
incorporated Wholly Owned Subsidiaries may act as Paying Agent, Registrar or
co-registrar.


4.  Indenture; First Supplemental Indenture

                  NC Merger Company, a Wisconsin corporation ("NC Merger"),
issued the Securities under an Indenture dated as of April 30, 1997
("Indenture"), among NC Merger and the Trustee. The terms of the Securities
include those stated in the Indenture and those made part of the Indenture by
reference to the Trust Indenture Act of 1939 (15 U.S.C. Sections
77aaa-77bbbb) as in effect on the date of the Indenture (the "Act"). Terms
defined in the Indenture and not defined herein have the meanings ascribed
thereto in the Indenture. The Securities are subject to all such terms, and
Securityholders are referred to the Indenture and the Act for a statement of
those terms.

                  Pursuant to the First Supplemental Indenture dated as of April
30, 1997, among the Company, the Initial Guarantors and the Trustee, the Company
assumed NC Merger's obligations under the Indenture and the Securities and each
of the Initial Guarantors agreed to guarantee those obligations under the
Indenture and the Securities.

                  The Securities are unsecured senior subordinated obligations
of the Company limited to $150,000,000 aggregate principal amount at any one
time outstanding (subject to Section 2.07 of the Indenture). This Security is
one of the Exchange Securities referred to in the Indenture. The Securities
include the Initial Securities and any Exchange Securities issued in exchange
for the Initial Securities pursuant to the Indenture.
   30
                                                                               5


The Initial Securities and the Exchange Securities are treated as a single class
of securities under the Indenture. The Indenture imposes certain limitations on
the Incurrence of Indebtedness by the Company and its Restricted Subsidiaries;
the payment of dividends on, and redemption of, Capital Stock of the Company and
its Restricted Subsidiaries and the redemption of certain Subordinated
Obligations of the Company and its Restricted Subsidiaries; Investments; sales
of assets and Restricted Subsidiary Capital Stock; certain transactions with
Affiliates of the Company; the sale or issuance of Capital Stock of the
Restricted Subsidiaries; the creation of Liens; the lines of business in which
the Company and its Restricted Subsidiaries may operate; Sale/Leaseback
Transactions and consolidations, mergers and transfers of all or substantially
all of the Company's assets. In addition, the Indenture prohibits certain
restrictions on distributions and dividends from Restricted Subsidiaries.

                  To guarantee the due and punctual payment of the principal and
interest, if any, on the Securities and all other amounts payable by the Company
under the Indenture and the Securities when and as the same shall be due and
payable, whether at maturity, by acceleration or otherwise, according to the
terms of the Securities and the Indenture, the Guarantor Subsidiaries have
guaranteed the Company's obligations under the Indenture on a senior
subordinated basis pursuant to the terms of the Indenture.


5.  Optional Redemption

                  Except as set forth in the next two paragraphs, the Securities
may not be redeemed prior to May 1, 2002. On and after that date, the Company
may redeem the Securities in whole at any time or in part from time to time at
the following redemption prices (expressed in percentages of principal amount),
plus accrued and unpaid interest, if any, to the redemption date
   31
                                                                               6


(subject to the right of Holders of record on the relevant record date to
receive interest due on the relevant interest payment date that is on or prior
to the date of redemption), if redeemed during the 12-month period beginning on
or after May 1 of the years set forth below:



                                                  Redemption
Period                                              Price   
- ------                                            ----------                                                            
                                                     
2002........................................       105.5625%
2003........................................       103.7083%
2004........................................       101.8542%
2005 and thereafter.........................       100.0000%


                  Notwithstanding the foregoing, at any time on or prior to May
1, 2000, the Company may redeem in the aggregate up to 40% of the original
aggregate principal amount of Securities with the proceeds of one or more Public
Equity Offerings at a redemption price (expressed as a percentage of principal
amount thereof) of 111.125% plus accrued and unpaid interest, if any, to the
redemption date (subject to the right of Holders of record on the relevant
record date to receive interest due on the relevant interest payment date that
is on or prior to the date of redemption); provided, however, that at least 60%
of the original aggregate principal amount of the Securities must remain
outstanding after each such redemption.

                  At any time prior to May 1, 2002, the Securities may be
redeemed, in whole or in part, at the option of the Company within 180 days
after a Change of Control, at a redemption price equal to the sum of (i) the
principal amount thereof plus (ii) accrued and unpaid interest, if any, to the
redemption date (subject to the right of holders of record on the relevant
record date to receive interest due on the relevant interest payment date that
is on or prior to the date of redemption) plus (iii) the Applicable Premium.
   32
                                                                               7


6.  Notice of Redemption

                  Notice of redemption will be mailed by first-class mail at
least 30 days but not more than 60 days before the redemption date to each
Holder of Securities to be redeemed at his registered address. Securities in
denominations larger than $1,000 may be redeemed in part but only in whole
multiples of $1,000. If money sufficient to pay the redemption price of and
accrued interest on all Securities (or portions thereof) to be redeemed on the
redemption date is deposited with the Paying Agent on or before the redemption
date and certain other conditions are satisfied, on and after such date interest
ceases to accrue on such Securities (or such portions thereof) called for
redemption.


7.  Put Provisions

                  Upon a Change of Control, unless the Company has elected to
redeem the Securities pursuant to paragraph 5, any Holder of Securities will
have the right, subject to certain conditions specified in the Indenture, to
cause the Company to purchase all or any part of the Securities of such Holder
at a repurchase price equal to 101% of the principal amount of the Securities to
be repurchased plus accrued and unpaid interest, if any, to the date of purchase
(subject to the right of Holders of record on the relevant record date to
receive interest due on the relevant interest payment date that is on or prior
to the date of purchase) as provided in, and subject to the terms of, the
Indenture.


8.  Subordination

                  The Securities are subordinated to Senior Indebtedness of the
Company, as defined in the Indenture. To the extent provided in the Indenture,
Senior Indebtedness of the Company must be paid before the Securities may be
paid. In addition, each Subsidiary Guaranty is subordinated to Senior
Indebtedness 
   33
                                                                               8


of the relevant Guarantor Subsidiary, as defined in the Indenture. The Company
and each Guarantor Subsidiary agrees, and each Securityholder by accepting a
Security agrees, to the subordination provisions contained in the Indenture and
authorizes the Trustee to give it effect and appoints the Trustee as
attorney-in-fact for such purpose.


9.  Denominations; Transfer; Exchange

                  The Securities are in registered form without coupons in
denominations of $1,000 and whole multiples of $1,000. A Holder may transfer or
exchange Securities in accordance with the Indenture. Upon any transfer or
exchange, the Registrar and the Trustee may require a Holder, among other
things, to furnish appropriate endorsements or transfer documents and to pay any
taxes required by law or permitted by the Indenture. The Registrar need not
register the transfer of or exchange any Securities selected for redemption
(except, in the case of a Security to be redeemed in part, the portion of the
Security not to be redeemed) or to transfer or exchange any Securities for a
period of 15 days prior to a selection of Securities to be redeemed or 15 days
before an interest payment date.


10.  Persons Deemed Owners

                  The registered Holder of this Security may be treated as the
owner of it for all purposes.


11.  Unclaimed Money

                  If money for the payment of principal or interest remains
unclaimed for two years, the Trustee or Paying Agent shall pay the money back to
the Company at its written request unless an abandoned property law designates
another Person. After any such payment, Holders entitled to the money must look
only to the Company and not to the Trustee for payment.
   34
                                                                               9


12.  Discharge and Defeasance

                  Subject to certain conditions, the Company at any time may
terminate some or all of its obligations under the Securities and the Indenture
if the Company deposits with the Trustee money or U.S. Government Obligations
for the payment of principal and interest on the Securities to redemption or
maturity, as the case may be.


13.  Amendment, Waiver

                  Subject to certain exceptions set forth in the Indenture, (i)
the Indenture or the Securities may be amended with the written consent of the
Holders of at least a majority in principal amount outstanding of the Securities
and (ii) any past default or noncompliance with any provision may be waived with
the consent of the Holders of a majority in principal amount then outstanding of
the Securities. Subject to certain exceptions set forth in the Indenture,
without the consent of any Securityholder, the Company and the Trustee may amend
the Indenture or the Securities to cure any ambiguity, omission, defect or
inconsistency, or to comply with Article V of the Indenture, or to provide for
uncertificated Securities in addition to or in place of certificated Securities,
or to add guarantees with respect to the Securities or to secure the Securities,
or to release Guarantor Subsidiaries when permitted by the Indenture or to add
additional covenants or surrender rights and powers conferred on the Company, or
to comply with any request of the SEC in connection with qualifying the
Indenture under the Act, or to make certain changes in the subordination
provisions, or to make any change that does not adversely affect the rights of
any Securityholder.
   35
                                                                              10


14.  Defaults and Remedies

                  Under the Indenture, Events of Default include (i) default for
30 days in payment of interest on the Securities; (ii) default in payment of
principal on the Securities at maturity, upon redemption pursuant to paragraph 5
of the Securities, or failure by the Company to redeem or purchase, upon
declaration or otherwise (whether or not such payment is prohibited by Article
X), Securities when required; (iii) failure by the Company or any Guarantor
Subsidiary to comply with other agreements in the Indenture or the Securities,
in certain cases subject to notice and lapse of time; (iv) certain accelerations
(including failure to pay within any grace period after final maturity) of other
Indebtedness of the Company if the amount accelerated (or so unpaid) exceeds
$5,000,000 or its foreign currency equivalent; (v) certain events of bankruptcy,
insolvency or reorganization with respect to the Company and its Restricted
Subsidiaries; and (vi) certain judgments or decrees not covered by insurance for
the payment of money in excess of $5,000,000 or its foreign currency equivalent
against the Company or a Restricted Subsidiary; and (vii) a Subsidiary Guaranty
ceasing to be in full force and effect (other than in accordance with its terms)
or any Guarantor Subsidiary denies or disaffirms its obligations under the
Indenture or any Subsidiary Guaranty and such Default continues for 10 days. If
an Event of Default occurs and is continuing, the Trustee or the Holders of at
least 25% in principal amount of the Securities may declare all the Securities
to be due and payable immediately. Certain events of bankruptcy or insolvency
are Events of Default which will result in the Securities being due and payable
immediately upon the occurrence of such Events of Default.

                  Securityholders may not enforce the Indenture or the
Securities except as provided in the Indenture. The Trustee may refuse to
enforce the Indenture or the Securities unless it receives reasonable indemnity
or security. Subject to certain limitations, Holders of a majority in principal
amount of the Securities may direct the Trustee in its exercise of any trust or
power. The Trustee may withhold from Securityholders notice of
   36
                                                                              11


any continuing Default (except a Default in payment of principal, premium, if
any, or interest) if and so long as a committee of its Trust Officers in good
faith determines that withholding notice is in the interest of the Holders.


15.  Trustee Dealings with the Company

                  Subject to certain limitations imposed by the Act, the Trustee
under the Indenture, in its individual or any other capacity, may become the
owner or pledgee of Securities and may otherwise deal with and collect
obligations owed to it by the Company or its Affiliates and may otherwise deal
with the Company or its Affiliates with the same rights it would have if it were
not Trustee.


16.  No Recourse Against Others

                  A director, officer, employee or stockholder, as such, of the
Company or any Guarantor Subsidiary shall not have any liability for any
obligations of the Company or a Guarantor Subsidiary under the Securities or the
Indenture or for any claim based on, in respect of or by reason of such
obligations or their creation. By accepting a Security, each Securityholder
waives and releases all such liability. The waiver and release are part of the
consideration for the issue of the Securities.


17.      Governing Law
   37
                                                                              12


                  THE SECURITIES SHALL BE GOVERNED BY, AND CONSTRUED IN
ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, BUT WITHOUT GIVING EFFECT TO
APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF
THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.


18.  Authentication

                  This Security shall not be valid until an authorized signatory
of the Trustee (or an authenticating agent) manually signs the certificate of
authentication on the other side of this Security.


19.  Abbreviations

                  Customary abbreviations may be used in the name of a
Securityholder or an assignee, such as TEN COM (=tenants in common), TENENT
(=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship
and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to
Minors Act).

20.  CUSIP Numbers

                  Pursuant to a recommendation promulgated by the Committee on
Uniform Security Identification Procedures the Company has caused CUSIP numbers
to be printed on the Securities and has directed the Trustee to use CUSIP
numbers in notices of redemption as a convenience to Securityholders. No
representation is made as to the accuracy of such numbers either as printed on
the Securities or as contained in any notice of redemption and reliance may be
placed only on the other identification numbers placed thereon.
   38
                                                                              13


                  The Company will furnish to any Securityholder upon written
request and without charge to the Securityholder a copy of the Indenture which
has in it the text of this Security in larger type. Requests may be made to:


                               NEENAH CORPORATION
                               2121 Brooks Avenue
                                Neenah, WI 54957
                      Attention of Chief Financial Officer
   39
                                                                              14


                                 ASSIGNMENT FORM



To assign this Security, fill in the form below:

I or we assign and transfer this Security to


         (Print or type assignee's name, address and zip code)

         (Insert assignee's soc. sec. or tax I.D. No.)


and irrevocably appoint                       agent to transfer this Security on
the books of the Company. The agent may substitute another to act for him.


________________________________________________________________________________

Date: _______________________ Your Signature: __________________________________

Signature Guarantee:____________________________________________________________
                    (Signature must be guaranteed by a
                    participant in a recognized signature
                    guarantee medallion program)
________________________________________________________________________________

Sign exactly as your name appears on the other side of this Security.
   40
                                                                              15


              SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY

                  The following increases or decreases in this Global Security
have been made:


                                                                         
Date of     Amount of decrease      Amount of increase      Principal amount         Signature of
Exchange    in Principal            in Principal            of this Global           authorized officer
            Amount of this          Amount of this          Security following       of Trustee or
            Global Security         Global Security         such decrease or         Securities
                                                            increase)                Custodian

   41
                                                                              16


                       OPTION OF HOLDER TO ELECT PURCHASE

                  If you want to elect to have this Security purchased by the
Company pursuant to Section 4.06 or 4.08 of the Indenture, check the box:

                                      [ ]

                  If you want to elect to have only part of this Security
purchased by the Company pursuant to Section 4.06 or 4.08 of the Indenture,
state the amount: $


Date: ______________________ Your Signature: ___________________________________
                                             (Sign exactly as your name appears
                                             on the other side of the Security)


Signature Guarantee:____________________________________________________________
                    (Signature must be guaranteed by a
                    participant in a recognized signature
                    guarantee medallion program)
   42
                                                                       EXHIBIT C







                      [FORM OF CERTIFICATE TO BE DELIVERED
                     IN CONNECTION WITH TRANSFERS TO NON-QIB
                       INSTITUTIONAL ACCREDITED INVESTORS]

                       Transferee Letter of Representation



Neenah Corporation
c/o United States Trust Company of New York
114 West 47th Street
New York, NY 10036



Dear Ladies and Gentlemen:

                  This certificate is delivered to request a transfer of $
principal amount of the 11-1/8% Senior Subordinated Notes due 2007 (the
"Securities") of Neenah Corporation (the "Company").

                  Upon transfer, the Securities would be registered in the name
of the new beneficial owner as follows:

                  Name: ___________________________________

                  Address: ________________________________

                  Taxpayer ID Number: _____________________

                  The undersigned represents and warrants to you that:

                  1. We are an institutional "accredited investor" (as defined
in Rule 501(a)(1), (2), (3) or (7) under the Securities Act of 1933, as amended
(the "Securities Act")) purchasing for our own account or for the account of
such an institutional "accredited investor" at least $250,000 principal amount
of the Securities, and we are acquiring the Securities not with a view to, or
for offer or sale in connection with, any distribution in violation of the
Securities Act. We have such knowledge and experience in financial and business
matters as to be capable of
   43
                                                                               2


evaluating the merits and risk of our investment in the Securities and invest in
or purchase securities similar to the Securities in the normal course of our
business. We and any accounts for which we are acting are each able to bear the
economic risk of our or its investment.

                  2. We understand that the Securities have not been registered
under the Securities Act and, unless so registered, may not be sold except as
permitted in the following sentence. We agree on our own behalf and on behalf of
any investor account for which we are purchasing Securities to offer, sell or
otherwise transfer such Securities prior to the date which is two years after
the later of the date of original issue and the last date on which the Company
or any affiliate of the Company was the owner of such Securities (or any
predecessor thereto) (the "Resale Restriction Termination Date") only (a) to the
Company, (b) pursuant to a registration statement which has been declared
effective under the Securities Act, (c) in a transaction complying with the
requirements of Rule 144A under the Securities Act, to a person we reasonably
believe is a qualified institutional buyer under Rule 144A (a "QIB") that
purchases for its own account or for the account of a QIB and to whom notice is
given that the transfer is being made in reliance on Rule 144A, (d) pursuant to
offers and sales that occur outside the United States within the meaning of
Regulation S under the Securities Act or (e) to an institutional "accredited
investor" within the meaning of Rule 501(a)(1), (2), (3) or (7) under the
Securities Act that is purchasing for its own account or for the account of such
an institutional "accredited investor", in each case in a transaction involving
a minimum principal amount of Securities of $250,000 or (f) pursuant to any
other available exemption from the registration requirements of the Securities
Act, subject in each of the foregoing cases to any requirement of law that the
disposition of our property or the property of such investor account or accounts
be at all times within our or their control and in compliance with any
applicable state securities laws. The foregoing restrictions on resale will not
apply subsequent to the Resale Restriction Termination Date. If any resale or
other transfer of the Securities is proposed to be made pursuant to
   44
                                                                               3


clause (e) above prior to the Resale Restriction Termination Date, the
transferor shall deliver a letter from the transferee substantially in the form
of this letter to the Company and the Trustee, which shall provide, among other
things, that the transferee is an institutional "accredited investor" within the
meaning of Rule 501(a)(1), (2), (3) or (7) under the Securities Act and that it
is acquiring such Securities for investment purposes and not for distribution in
violation of the Securities Act. Each purchaser acknowledges that the Company
and the Trustee reserve the right prior to any offer, sale or other transfer
prior to the Resale Termination Date of the Securities pursuant to clause (d),
(e) or (f) above to require the delivery of an opinion of counsel,
certifications and/or other information satisfactory to the Company and the
Trustee.



                                                  TRANSFEREE:___________________


                                                  BY____________________________
   45
                                                                       EXHIBIT D





                          FIRST SUPPLEMENTAL INDENTURE

                                    FIRST SUPPLEMENTAL INDENTURE (this
                           "Supplemental Indenture"), dated as of April 30,
                           1997, among NEENAH CORPORATION, a Wisconsin
                           corporation ("Neenah"), NEENAH FOUNDRY COMPANY,
                           NEENAH TRANSPORT, INC. and HARTLEY CONTROLS
                           CORPORATION, each a Wisconsin corporation and a
                           wholly owned subsidiary of Neenah (collectively, the
                           "Initial Guarantors"), and UNITED STATES TRUST
                           COMPANY OF NEW YORK, a New York corporation, as
                           trustee under the indenture referred to below (the
                           "Trustee").


                               W I T N E S S E T H

                  WHEREAS NC Merger Company, a Wisconsin corporation (the
"Company"), as issuer, has heretofore executed and delivered to the Trustee an
indenture (the "Indenture"), dated as of April 30, 1997, providing for the
issuance of an aggregate principal amount of $150,000,000 of 11-1/8% Senior
Subordinated Notes due 2007 of the Company (the "Securities");

                  WHEREAS, immediately after the execution of the Indenture and
the issuance of the Securities, the Company was merged with and into Neenah in
the Neenah Merger, with Neenah as the surviving corporation;

                  WHEREAS, (i) pursuant to the terms of the Neenah Merger,
Neenah succeeded to the obligations of the Company under the Indenture and (ii)
the Guarantors have agreed to become Guarantor Subsidiaries under the Indenture;
and

                  WHEREAS, pursuant to Section 9.01 of the Indenture, the
parties hereto are required to execute and deliver this Supplemental Indenture;
   46
                                                                               2


                  NOW, THEREFORE, in consideration of the foregoing and for
other good and valuable consideration, the receipt of which is hereby
acknowledged, Neenah, each of the Guarantors and the Trustee mutually covenant
and agree for the equal and ratable benefit of the holders of the Securities as
follows:

                  1. Definitions. (a) Capitalized terms used herein without
definition shall have the meanings assigned to them in the Indenture.

                  (b) For all purposes of this Supplemental Indenture, except as
otherwise herein expressly provided or unless the context otherwise requires:
(i) the terms and expressions used herein shall have the same meanings as
corresponding terms and expressions used in the Indenture; and (ii) the words
"herein", "hereof" and "hereby" and other words of similar import used in this
Supplement refer to this Supplement as a whole and not to any particular section
hereof.

                  2. Express Assumption of Obligations under the Indenture.
Neenah acknowledges and agrees that as a result of its being the surviving
corporation in the Merger with NC Merger it has succeeded to all of the
obligations and duties of NC Merger under the Securities and the Indenture on
the terms and subject to the conditions set forth in the Securities and the
Indenture. Neenah agrees to be bound by all provisions of the Securities and the
Indenture.

                  3. Agreement To Guarantee. Each of the Guarantors hereby
agrees to, jointly and severally guarantee Neenah's obligations under the
Securities on the terms and subject to the conditions set forth in Article XI of
the Indenture and to be bound by all other applicable provisions of the
Indenture.

                  4. Ratification of Indenture; Supplemental Indenture, Part of
Indenture. Except as expressly amended
   47
                                                                               3


hereby, the Indenture is in all respects ratified and confirmed by the parties
hereto and all the terms, conditions and provisions thereof shall remain in full
force and effect. This Supplemental Indenture shall form a part of the Indenture
for all purposes, and every holder of Securities heretofore or hereafter
authenticated and delivered shall be bound hereby.

                  5. GOVERNING LAW. THIS SUPPLEMENTAL INDENTURE SHALL BE
GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK
BUT WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE
EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE
REQUIRED THEREBY.

                  6. Trustee Makes No Representation. The Trustee makes no
representation as to the validity or sufficiency of this Supplemental Indenture.

                  7. Counterparts. The parties may sign any number of copies of
this Supplemental Indenture. Each signed copy shall be an original, but all of
them together represent the same agreement.
   48
                                                                               4


                  8. Effect of Headings. The Section headings herein are for
convenience only and shall not effect the construction thereof.


                  IN WITNESS WHEREOF, the parties hereto have caused this
Supplemental Indenture to be duly executed as of the date first above written.


                                           NEENAH CORPORATION,

                                            by
                                               _________________________________
                                               Name:
                                               Title:


                                           NEENAH FOUNDRY COMPANY,

                                            by
                                               _________________________________
                                               Name:
                                               Title:



                                           NEENAH TRANSPORT, INC.,

                                            by
                                               _________________________________
                                               Name:
                                               Title:
   49
                                                                               5


                                           HARTLEY CONTROLS CORPORATION,

                                            by
                                               _________________________________
                                               Name:
                                               Title:


                                           UNITED STATES TRUST COMPANY OF
                                           NEW YORK, as Trustee,

                                            by
                                               _________________________________
                                               Name:
                                               Title:
   50
                                                                       EXHIBIT E


                         FORM OF SUPPLEMENTAL INDENTURE


                                  SUPPLEMENTAL INDENTURE (this "Supplemental
                         Indenture"), dated as of [ ], among [NEW GUARANTOR
                         SUBSIDIARY] (the "New Guarantor Subsidiary"), a
                         subsidiary of NEENAH CORPORATION (or its successor),
                         a Wisconsin corporation (the "Company"), THE COMPANY,
                         on behalf of itself and the Guarantor Subsidiaries
                         (the "Existing Guarantor Subsidiaries") under the
                         Indenture referred to below, and UNITED STATES TRUST
                         COMPANY OF NEW YORK, a New York banking association,
                         as trustee under the indenture referred to below (the
                         "Trustee").


                              W I T N E S S E T H :


         WHEREAS NC Merger Company, a Wisconsin corporation ("NC Merger"), has
heretofore executed and delivered to the Trustee an Indenture (the "Indenture"),
dated as of April 30, 1997, providing for the issuance of an aggregate principal
amount of $150,000,000 of 11-1/8% Senior Subordinated Notes due 2007 (the
"Securities") and the Company and the Initial Guarantors have executed and
delivered the First Supplemental Indenture pursuant to which the Company assumed
NC Merger's obligations under the Indenture and the Securities and the Initial
Guarantors agreed to guarantee those obligations;

         WHEREAS Section 4.15 of the Indenture provides that under certain
circumstances the Company is required to cause the New Guarantor Subsidiary to
execute and deliver to the Trustee a supplemental indenture pursuant to which
the New Guarantor Subsidiary shall unconditionally guarantee all
   51
                                                                               2


of the Company's obligations under the Securities pursuant to a Subsidiary
Guaranty on the terms and conditions set forth herein; and

         WHEREAS pursuant to Section 9.01 of the Indenture, the Trustee, the
Company and Existing Guarantor Subsidiaries are authorized to execute and
deliver this Supplemental Indenture;

         NOW THEREFORE, in consideration of the foregoing and for other good and
valuable consideration, the receipt of which is hereby acknowledged, the New
Guarantor Subsidiary, the Company, the Existing Guarantor Subsidiaries and the
Trustee mutually covenant and agree for the equal and ratable benefit of the
holders of the Securities as follows:

         1. Definitions. (a) Capitalized terms used herein without definition
shall have the meanings assigned to them in the Indenture.

         (b) For all purposes of this Supplemental Indenture, except as
otherwise herein expressly provided or unless the context otherwise requires:
(i) the terms and expressions used herein shall have the same meanings as
corresponding terms and expressions used in the Indenture; and (ii) the words
"herein," "hereof" and "hereby" and other words of similar import used in this
Supplement refer to this Supplement as a whole and not to any particular section
hereof.

         2. Agreement to Guarantee. The New Guarantor Subsidiary hereby agrees,
jointly and severally with all other Guarantor Subsidiaries, to Guarantee the
Company's obligations under the Securities on the term and subject to the
conditions set forth in Article 11 of the Indenture and to be bound by all other
applicable provisions of the Indenture.
   52
                                                                               3


         3. Ratification of Indenture; Supplemental Indentures Part of
Indenture. Except as expressly amended hereby, the Indenture is in all respects
ratified and confirmed and all the terms, conditions and provisions thereof
shall remain in full force and effect. This Supplemental Indenture shall form a
part of the Indenture for all purposes, and every holder of Securities
heretofore or hereafter authenticated and delivered shall be bound hereby.

         4. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK BUT WITHOUT
GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT
THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

         5. Trustee Makes No Representation. The Trustee makes no representation
as to the validity or sufficiency of this Supplemental Indenture.

         6. Counterparts. The parties may sign any number of copies of this
Supplemental Indenture. Each signed copy shall be an original, but all of them
together represent the same agreement.
   53
                                                                               4


         7. Effect of Headings. The Section headings herein are for convenience
only and shall not effect the construction thereof.


         IN WITNESS WHEREOF, the parties hereto have caused this Supplemental
Indenture to be duly executed as of the date first above written.

                                       [NEW GUARANTOR SUBSIDIARY],

                                          by __________________________________
                                             Name:
                                             Title:


                                       NEENAH CORPORATION, on behalf
                                       of itself and the Existing
                                       Guarantor Subsidiaries,

                                          by __________________________________
                                             Name:
                                             Title:


                                       UNITED STATES TRUST COMPANY
                                       OF NEW YORK as Trustee,

                                          by __________________________________
                                             Name:
                                             Title:
   54
                                                                       EXHIBIT F


                      [FORM OF CERTIFICATE TO BE DELIVERED
                     UPON TERMINATION OF RESTRICTED PERIOD]


                            On or after June 8, 1997


Neenah Corporation
c/o United States Trust Company of New York
114 West 47th Street
New York, NY 10036


Attention:  [          ]

                  Re:      Neenah Corporation (the "Company") 11-1/8%
                           Senior Subordinated Notes due 2007 (the
                           "Initial Securities") and 11-1/8% Series B
                           Senior Subordinated Notes due 2007 (the
                           "Exchange Securities" and, together with the
                           Initial Securities, the "Securities")

Ladies and Gentlemen:

         This letter relates to Securities represented by a temporary global
note certificate (the "Temporary Certificate"). Pursuant to Section 2.01 of the
Indenture dated as of April 30, 1997 relating to the Securities (the
"Indenture"), we hereby certify that (1) we are the beneficial owner of $[     ]
principal amount of Initial Securities represented by the Temporary Certificate
and (2) we are a person outside the United States to whom the Initial Securities
could be transferred in accordance with Rule 904 of Regulation S promulgated
under the Securities Act of 1933, as amended. Accordingly, you are hereby
requested to issue a Certificated Note representing the undersigned's interest
in the principal amount of Initial Securities represented by the Temporary
Certificate, all in the manner provided by the Indenture.
   55
                                                                               2

         You and the Company are entitled to rely upon this letter and are
irrevocably authorized to produce this letter or a copy hereof to any interested
party in any administrative or legal proceedings or official inquiry with
respect to the matters covered hereby. Terms used in this certificate have the
meanings set forth in Regulation S.



                                      Very truly yours,



                                      [Name of Holder]


                                      By:___________________________
                                           Authorized Signature


   56
                                                                       EXHIBIT G


                      [FORM OF CERTIFICATE TO BE DELIVERED
               IN CONNECTION WITH TRANSFERS PURSUANT TO RULE 144A]



United States Trust Company of New York
114 West 47th Street
New York, NY 10036

Attention:  [                     ]


[date]

                  Re:      Neenah Corporation (the "Company") 11-1/8%
                           Senior Subordinated Notes due 2007 (the
                           "Securities")


Ladies and Gentlemen:

         In connection with our proposed sale of $_______ aggregate principal
amount at maturity of the Securities, we hereby certify that such transfer is
being effected pursuant to and in accordance with Rule 144A under the United
States Securities Act of 1933, as amended (the "Securities Act"), and,
accordingly, we hereby further certify that the Securities are being transferred
to a person that we reasonably believe is purchasing the Securities for its own
account, or for one or more accounts with respect to which such person exercises
sole investment discretion, and such person and each such account is a
"qualified institutional buyer" within the meaning of Rule 144A in a transaction
meeting the requirements of Rule 144A and such Securities are being transferred
in compliance with any applicable blue sky securities laws of any state of the
United States.

         You and the Company are entitled to rely upon this letter and are
irrevocably authorized to produce this letter
   57
                                                                               2


or a copy hereof to any interested party in any administrative or legal
proceedings or official inquiry with respect to the matters covered hereby.


                                    Very truly yours,


                                    ____________________________
                                       [Name of Transferor]



                                    By:_________________________
                                        Authorized Signature
   58
                                                                       EXHIBIT H


                      [Form of Certificate to Be Delivered
                          in Connection with Transfers
                            Pursuant to Regulation S]


                                     [date]


United States Trust Company of New York
114 West 47th Street
New York, NY 10036


Attention:  [           ]


                  Re:      Neenah Corporation (the "Company") 11-1/8%
                           Senior Subordinated Notes due 2007 (the
                           "Securities")

Ladies and Gentlemen:

         In connection with our proposed sale of $________ aggregate principal
amount of the Securities, we confirm that such sale has been effected pursuant
to and in accordance with Regulation S under the United States Securities Act of
1933, as amended (the "Securities Act"), and, accordingly, we represent that:

         (1) the offer of the Securities was not made to a person in the United
     States;

         (2) either (a) at the time the buy order was originated, the transferee
     was outside the United States or we and any person acting on our behalf
     reasonably believed that the transferee was outside the United States or
     (b) the transaction was executed in, on or through the facilities of a
     designated off-shore securities market and neither we nor any person acting
     on our behalf knows that the transaction has been prearranged with a buyer
     in the United States;
   59
                                                                               2


         (3) no directed selling efforts have been made in the United States in
     contravention of the requirements of Rule 903(b) or Rule 904(b) of
     Regulation S, as applicable; and

         (4) the transaction is not part of a plan or scheme to evade the
     registration requirements of the Securities Act.

         In addition, if the sale is made during a restricted period and the
provisions of Rule 903(c)(3) or Rule 904(c)(1) of Regulation S are applicable
thereto, we confirm that such sale has been made in accordance with the
applicable provisions of Rule 903(c)(3) or Rule 904(c)(1), as the case may be.

         You and the Company are entitled to rely upon this letter and are
irrevocably authorized to produce this letter or a copy hereof to any interested
party in any administrative or legal proceedings or official inquiry with
respect to the matters covered hereby. Terms used in this certificate have the
meanings set forth in Regulation S.


                                    Very truly yours,


                                    [Name of Transferor]



                                    By:_______________________
                                         Authorized Signature