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                                                                    EXHIBIT 99.3

                               AMENDMENT NO. 1 TO
                                CREDIT AGREEMENT


                  THIS AMENDMENT NO. 1 TO CREDIT AGREEMENT (the "Amendment") is
entered into as of the 31st day of January, 2000 by and between PNC BANK,
NATIONAL ASSOCIATION, as Agent under the Credit Agreement described below, on
behalf of the Lenders, and BRADY CORPORATION, a Delaware corporation, and BRADY
FINANCIAL CO., a Delaware corporation (collectively, the "Borrowers"), on behalf
of the Loan Parties.

                                   WITNESSETH:

                  WHEREAS, the Borrowers, the Lenders and the Agent have entered
into that certain Credit Agreement dated as of September 23, 1999 (the
"Agreement"; terms defined in the Agreement, as amended hereby, which are used
herein shall have the same meanings as are set forth in the Agreement for such
terms unless otherwise defined herein);

                  WHEREAS, the Borrowers have requested that the Lenders amend
certain provisions of the Agreement, and the Lenders are willing to do so on the
terms and subject to the conditions hereinafter set forth;

                  WHEREAS, pursuant to Section 10.1 of the Agreement, the Agent,
with the written consent of the Required Lenders, may enter into certain
prescribed amendments to the Agreement on behalf of the Lenders, and the
Borrowers may enter into amendments of the Agreement on behalf of the Loan
Parties;

                  WHEREAS, the Borrowers have requested the Lenders to increase
the Commitments to an aggregate principal amount equal to $200,000,000; and

                  WHEREAS, pursuant to Section 2.4.2 of the Agreement, if the
increase in Commitments is approved by all of the Lenders, Schedule 1.1(B) to
the Agreement shall be amended to reflect such increase.

                  NOW, THEREFORE, in consideration of the premises set forth
above, the terms and conditions contained herein, and other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
Lenders and the Borrowers hereby agree as follows:

         1.       Amendments to Agreement. Subject to the satisfaction of the
conditions precedent set forth in Section 3 below, the Agreement is amended as
follows:

                  (a) Section 1.1 of the Agreement is amended by inserting the
following new definitions:

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                  "Operating Income" of any Person for any period of
                  determination shall mean income before deduction (or credit,
                  if applicable) for taxes, interest expense or interest income,
                  amortization of goodwill and nonoperating extraordinary
                  expense or income, all as determined in accordance with GAAP."

                  "Issuing Bank" shall mean PNC Bank, National Association and
                  its successors and assigns and any other Lender approved as an
                  Issuing Bank by the Borrowers and the Agent so long as each
                  such Lender expressly agrees to perform in accordance with
                  their terms all of the obligations that by the terms of this
                  Agreement are required to be performed by it as an Issuing
                  Bank and notifies the Agent of its applicable Lending Office
                  and the amount of its Letter of Credit commitment (which
                  information shall be recorded by the Agent in the register),
                  for so long as such Issuing Bank shall have a Letter of Credit
                  Outstanding."

                  (b) Section 1.1 of the Agreement is hereby amended by adding
to the definition of "Permitted Guaranty Obligations" the following new clause
(iv):

                  "and (iv) Guaranty Obligations of any Borrower in respect of
                  any Indebtedness permitted under Section 7.2.1(xiii)."

                  (c) Section 2.13 of the Agreement is hereby amended by
deleting each reference therein to "Agent," other than references in Sections
2.13.3.3, 2.13.3.4, clause (i) of Section 2.13.2 and clauses (i) and (iv) of
Section 2.13.7, and replacing it with the phrase "Issuing Bank."

                  (d) Clause (i) of Section 2.13.1 of the Agreement is hereby
deleted and replaced in its entirety by the following:

                  "(i)  the Dollar Equivalent amount of Letters of Credit
                  Outstanding exceed, at any one time, $50,000,000 or"

                  (e) Section 2.13.3.3 of the Agreement is hereby deleted and
replaced in its entirety by the following:

                  "2.13.3.3 Each Lender shall upon any notice pursuant to
                  Section 2.13.3.2 make available to the Agent for the account
                  of the Issuing Bank an amount in Dollars in immediately
                  available funds equal to its Ratable Share of the Dollar
                  Equivalent amount of the drawing, whereupon the participating
                  Lenders shall (subject to


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                  Section 2.13.3.4) each be deemed to have made a Revolving
                  Credit Loan in Dollars under the Base Rate Option to the
                  Borrowers in that amount. If any Lender so notified fails to
                  make available in Dollars to the Agent for the account of the
                  Issuing Bank the amount of such Lender's Ratable Share of such
                  Dollar Equivalent amount by no later than 2:00 p.m., Eastern
                  time on the Drawing Date, then interest shall accrue on such
                  Lender's obligation to make such payment, from the Drawing
                  Date to the date on which such Lender makes such payment (i)
                  at a rate per annum equal to the Federal Funds Effective Rate
                  during the first three days following the Drawing Date and
                  (ii) at a rate per annum equal to the rate applicable to Loans
                  under the Revolving Credit Base Rate Option on and after the
                  fourth day following the Drawing Date. The Issuing Bank will
                  promptly give notice of the occurrence of the Drawing Date,
                  but failure of the Issuing Bank to give any such notice on the
                  Drawing Date or in sufficient time to enable any Lender to
                  effect such payment on such date shall not relieve such Lender
                  from its obligation under this Section 2.13.3.3."

                  (f) The last sentence of Section 2.13.3.4 of the Agreement is
hereby deleted and replaced in its entirety by the following:

                  "Each Lender's payment to the Agent for the account of the
                  Issuing Bank pursuant to Section 2.13.3.3 shall be deemed to
                  be a payment in respect of its participation in such Letter of
                  Credit Borrowing and shall constitute a Participation Advance
                  from such Lender in satisfaction of its participation
                  obligation under this Section 2.13.3."

                  (g) Clause (i) of Section 2.13.7 of the Agreement is hereby
deleted and replaced in its entirety by the following:

                  "(i) any setoff, counterclaim, recoupment, defense or other
                  right which such Lender may have against the Issuing Bank, the
                  Agent, the Borrowers or any other Person for any reason
                  whatsoever;"

                  (h) Clause (iv) of Section 2.13.7 of the Agreement is hereby
deleted and replaced in its entirety by the following:

                  "(iv) the existence of any claim, setoff, defense or other
                  right which any Loan Party or any Lender may have at any time
                  against a beneficiary or any transferee of any Letter of
                  Credit (or any Persons


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                  for whom any such transferee may be acting), the Issuing Bank,
                  the Agent or any Lender or any other Person or, whether in
                  connection with this Agreement, the transactions contemplated
                  herein or any unrelated transaction (including any underlying
                  transaction between any Loan Parties or any of their
                  Subsidiaries and the beneficiary for which any Letter of
                  Credit was procured);"

                  (i) Section 2.13 of the Agreement is hereby amended by adding
the following new Sections 2.13.10, 2.13.11 and 2.13.12:

                  "2.13.10 Notice of Actual Issuances. Promptly upon issuing any
                  Letter of Credit, the Issuing Bank will notify the Agent of
                  the date of such Letter of Credit, the amount thereof and the
                  beneficiary or beneficiaries thereof. Upon receipt of such
                  notice, the Agent shall promptly notify each Lender of the
                  contents thereof and the amount of such Lender's participation
                  in the relevant Letter of Credit. Promptly upon issuing any
                  Letter of Credit, the Issuing Bank will send a copy of such
                  Letter of Credit to the Agent.

                  2.13.11 Proposed Extension of Expiry Dates. The Issuing Bank
                  or the Borrowers shall give the Agent at least five (5)
                  Business Days' notice before such Issuing Bank extends the
                  expiry date of any Letter of Credit issued by it. Such notice
                  shall (i) identify such Letter of Credit, (ii) specify the
                  date on which such extension is to be made (or the last day on
                  which such Issuing Bank can give notice to prevent such
                  extension from occurring) and (iii) specify the date to which
                  such expiry date is to be so extended. Upon receipt of such
                  notice, the Agent shall promptly notify each Lender of the
                  contents thereof. The Issuing Bank shall not extend (or allow
                  extension of) the expiry date of any Letter of Credit if (A)
                  the extended expiry date would be after the tenth Business Day
                  before the Expiration Date or (B) the Issuing Bank shall have
                  been notified by any Borrower, the Agent or any Lender
                  expressly to the effect that any condition specified in
                  Section 6.2 is not satisfied at the time such Letter of Credit
                  is to be extended.

                  2.13.12 Information to be Provided to Agent. The Issuing Bank
                  shall furnish to the Agent upon request such information as
                  the Agent shall reasonably request in order to calculate the
                  Letters of Credit Outstanding and the Letter of Credit Fee."


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                  (j) Clause (xiii) of Section 7.2.1 of the Agreement is hereby
deleted and replaced in its entirety by the following:

                  "(xiii) other Indebtedness of the Company and its
                  Subsidiaries, as a group, which does not exceed $25,000,000 in
                  the aggregate at any time outstanding."

                  (k) Section 7.2.6(2) of the Agreement is hereby amended by (i)
inserting the following words immediately after the words "any Loan Party" in
the first line thereof:

                  "or any Subsidiary which is not a Loan Party"

(ii) deleting clause (iv) thereof and replacing it in its entirety with the
following:

                  "(iv) the Company shall demonstrate on a pro forma basis that
                  it shall be in compliance with the covenants contained in
                  Sections 7.2.13, 7.2.14, 7.2.15 and 7.2.16 after giving effect
                  to such Permitted Acquisition (including in such computation
                  (A) Consolidated EBITDA for the acquired business for the
                  immediately preceding four fiscal quarters with respect to the
                  covenants contained in Section 7.2.13, (B) Consolidated EBIT
                  for the acquired business for the immediately preceding four
                  fiscal quarters with respect to the covenants contained in
                  Section 7.2.14, (C) Operating Income for the acquired business
                  for the immediately preceding four fiscal quarters with
                  respect to the covenants contained in Section 7.2.16, and (D)
                  Indebtedness or other liabilities assumed or incurred in
                  connection with such Permitted Acquisition) by delivering to
                  the Agent at least fifteen (15) Business Days prior to such
                  Permitted Acquisition a certificate in the form of Exhibit
                  7.2.6 evidencing such compliance, which certificate shall be
                  subject to the approval of the Agent which approval shall not
                  be unreasonably withheld.

and (iii) adding the following new clause (vii):

                  "(vii) in the case of any Permitted Acquisition by any
                  Subsidiary which is not a Loan Party, (A) 65% of the stock of
                  such Subsidiary shall be pledged as collateral to the Agent
                  for the benefit of the Lenders pursuant to a pledge agreement
                  in form and substance satisfactory to the Agent and the
                  pledging party or (B) the aggregate purchase price (including
                  assumption of debt) of all Permitted Acquisitions made by
                  Subsidiaries which are not Loan


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                  Parties and which have not complied with the pledging
                  requirement in clause (A) above shall not exceed $40,000,000
                  in any one fiscal year"

                  (l) Section 7.2.15 of the Agreement is hereby deleted and
replaced in its entirety by the following:

                  "7.2.15 Minimum Net Worth. The Company shall not as of the end
                  of any fiscal quarter permit Consolidated Net Worth to be less
                  than the sum of (i) 80% of the Consolidated Net Worth at the
                  Closing Date plus (ii) 45% of the cumulative net income of the
                  Company and its Subsidiaries plus (iii) 50% of all equity
                  interests of the Company issued after the Closing Date."

                  (m) Section 7.2.16 of the Agreement is hereby deleted and
replaced in its entirety by the following:

                  "7.2.16 Loan Party Operating Income. The Company shall not
                  permit the aggregate Operating Income of the Loan Parties to
                  be less than $35,000,000, as calculated at the end of each
                  fiscal quarter for the immediately preceding four (4) fiscal
                  quarters. For purposes of determining Operating Income of any
                  Foreign Loan Party, the Operating Income of any wholly owned
                  subsidiary of such Foreign Loan Party shall be included."

         2.       Conditions of Effectiveness. The amendments to the Agreement
contained in Section 1 shall become effective when and only when each of the
conditions specified in clauses (a) and (b) below has been satisfied:

                  (a) no Event of Default or Potential Default shall have
occurred and be continuing on the date hereof or on the date the Amendment
becomes effective and the representations and warranties made in the Agreement
and in Section 3 hereof shall be true and correct on the date hereof and on the
date the Amendment becomes effective and the Borrowers shall have delivered to
the Agent for the benefit of the Lenders an officer's certificate to both such
effects executed by an Authorized Officer;

                  (b) the Agent shall have received the following documents,
each document being in form and substance satisfactory to the Agent:

                       (1) written Approval Memos from all of the Lenders in the
                  form of Exhibit A attached hereto;

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                           (2) this Amendment, duly executed by the Company;

                           (3) the officer's certificate referenced in clause
                 (a) above; and

                           (4) such instruments, agreements and other items as
                 the Agent may request.


         3.      Representation and Warranties. Each of the Borrowers represents
and warrants as follows: (i) it has all necessary power and authority to execute
and deliver this Amendment and to perform its obligations hereunder; (ii) the
execution, delivery and performance of this Amendment have been duly authorized
by it; (iii) this Amendment and the Agreement, as amended hereby, constitute the
legal, valid and binding obligations of such Borrower and are enforceable
against such Borrower in accordance with their terms; and (iv) the approval,
execution, delivery and performance of the terms hereof and of the Agreement, as
amended hereby, do not violate any contractual provision to which it is a party
or by which it is or its properties are bound or any Law applicable to it.

         4.       Reference to the Effect on the Agreement.

                  (a) (i) Each reference in the Agreement to "this Agreement,"
"hereunder," "hereof," "herein" or words of like import shall mean and be a
reference to the Agreement as amended hereby and (ii) each reference to the
Agreement in all other Loan Documents shall mean and be a reference to the
Agreement, as amended hereby.

                  (b) Except as specifically amended above, the Agreement and
all other Loan Documents shall remain in full force and effect and are hereby
ratified and confirmed.

                  (c) The execution, delivery and effectiveness of this
Amendment shall not, except as expressly provided herein, operate as an
amendment to any provision of the Agreement nor a waiver of any right, power or
remedy of any Lender or Agent, nor constitute a waiver of, or consent to any
departure from, any provision of the Agreement or any other Loan Document.

         5.       Governing Law. This Amendment shall be governed by and
construed in accordance with the internal laws (as opposed to conflicts of law
provisions) of the State of Illinois.

         6.       Headings. Section headings in this Amendment are included
herein for convenience of reference only and shall not constitute a part of this
Amendment for any other purpose.

         7.       Counterparts. This Amendment may be executed by one or more of
the parties to this Amendment on any number of separate counterparts and all of
said counterparts taken

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together shall be deemed to constitute one and the same instrument. Delivery of
a duly executed counterpart copy of this Amendment may be made by telecopy.

         8.       Expenses. The Borrowers will upon demand pay to the Agent the
amount of any and all expenses, including the reasonable fees and expenses of
the Agent's attorneys which the Agent may incur in connection with the
preparation, negotiation and enforcement of this Amendment and each of the
agreements, instruments and other documents to be delivered to the Agent or the
Lenders in connection herewith.


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                                                                 AMENDMENT NO. 1


                  IN WITNESS WHEREOF, this Amendment has been duly executed as
of the day and year first above written.

                                 PNC BANK, NATIONAL ASSOCIATION, as
                                 Administrative Agent acting on behalf of the
                                 Lenders pursuant to Section 10.1 of the
                                 Agreement


                                 By:     /s/ James DeVries
                                         ---------------------

                                 Title:  Senior Vice President
                                         ---------------------


                                 BRADY CORPORATION, acting on behalf of the
                                 Loan Parties pursuant to Section 10.1 of the
                                 Agreement


                                 By:     /s/ Donald E. Rearic
                                         ---------------------
                                          Brady Corporation

                                 Title:  Vice President Treasurer & Asst. Sec'y.
                                         ---------------------------------------


                                 BRADY FINANCIAL CO., acting on behalf of the
                                 Loan Parties pursuant to Section 10.1 of the
                                 Agreement


                                 By:     /s/ Donald E. Rearic
                                         ---------------------

                                 Title:  Brady Financial Co.
                                         ---------------------
                                         President & Treasurer


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