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                                                                     EXHIBIT 4.2




                   FORM OF REPRESENTATIVE'S WARRANT AGREEMENT



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                        BRIGHTON TECHNOLOGIES CORPORATION

                                       AND

                         NATIONAL SECURITIES CORPORATION



                                REPRESENTATIVE'S
                                WARRANT AGREEMENT




                           DATED AS OF ______ __, 1998



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               REPRESENTATIVE'S WARRANT AGREEMENT dated as of _________ __,
1998, between BRIGHTON TECHNOLOGIES CORPORATION, a Delaware corporation (the
"Company"), and NATIONAL SECURITIES CORPORATION and its assignees or designees
(each hereinafter referred to variously as a "Holder" or "Representative").

                              W I T N E S S E T H :

               WHEREAS, the Representative has agreed pursuant to the
underwriting agreement (the "Underwriting Agreement") between the Representative
and the Company, to act as the representative of the several underwriters listed
therein (the "Underwriters") in connection with the Company's proposed public
offering of 1,000,000 Units (the "Units"), consisting of one (1) share of Common
Stock (as hereinafter defined) and one (1) warrant (the "Warrant") to purchase
one (1) share of Common Stock at an exercise price of $____ (150% of the
offering price per Unit), at a public offering price of $_______ per Unit (the
"Public Offering").

               WHEREAS, pursuant to the Underwriting Agreement, the Company
proposes to issue warrants to the Representative to purchase up to an aggregate
of 100,000 Units (the "Representative's Warrants").

               WHEREAS, the Representative's Warrants to be issued pursuant to
this Agreement will be issued on the Closing Date (as such term is defined in
the Underwriting Agreement) by the Company to the Representative in
consideration for, and as part of the Underwriters' compensation in connection
with, the Representative acting as the representative pursuant to the
Underwriting Agreement.



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               NOW, THEREFORE, in consideration of the premises, the payment by
the Representative to the Company of an aggregate of ten dollars ($10.00), the
agreements herein set forth and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

               1. Grant. The Representative is hereby collectively granted the
right to purchase, at any time from ___________, 1999 until 5:30 p.m., New York
time, on ____________, 2003 (5 years from the Effective Date of the Registration
Statement), at which time the Representative's Warrants expire, up to an
aggregate 100,000 Units (subject to adjustment as provided in Section 8 hereof),
each Unit consisting of one (1) share of common stock, $.001 par value per
share, of the Company (the "Common Stock") and one (1) Warrant to purchase one
(1) share of Common Stock at an exercise price of $_______ (150% of the offering
price per Unit), at an initial exercise price (subject to adjustment as provided
in Section 11 hereof) of $____ (120% of the offering price per Unit) (the
"Exercise Price").

               2. Representative's Warrant Certificates. The Representative's
warrant certificates (the "Warrant Certificates") delivered and to be delivered
pursuant to this Agreement shall be in the form set forth in Exhibit A, attached
hereto and made a part hereof, with such appropriate insertions, omissions,
substitutions, and other variations as required or permitted by this Agreement.

               3. Registration of Warrant. The Representative's Warrants shall
be numbered and shall be registered on the books of the Company when issued.



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               4.   Exercise of Representative's Warrant.

                    4.1 Method of Exercise. The Representative's Warrants
initially are exercisable at the Exercise Price (subject to adjustment as
provided in Section 11 hereof) per Representative's Warrant set forth in Section
8 hereof payable by certified or official bank check in New York Clearing House
funds. Upon surrender of a Representative's Warrant Certificate with the annexed
Form of Election to Purchase duly executed, together with payment of the
Exercise Price for the Units purchased at the Company's principal offices in New
Jersey (presently located at 6 Pearl Street, Allendale, New Jersey 07401), the
registered holder of a Representative's Warrant Certificate ("Holder" or
"Holders") shall be entitled to receive a certificate or certificates for the
Units so purchased. The purchase rights represented by each Representative's
Warrant Certificate are exercisable at the option of the Holder thereof, in
whole or in part (but not as to fractional Units underlying the Representative's
Warrants). In the case of the purchase of less than all of the Units purchasable
under any Representative's Warrant Certificate, the Company shall cancel said
Representative's Warrant Certificate upon the surrender thereof and shall
execute and deliver a new Representative's Warrant Certificate of like tenor for
the balance of the Units purchasable thereunder.

                    4.2 Exercise by Surrender of Representative's Warrant. In
addition to the method of payment set forth in Section 4.1 and in lieu of any
cash payment required thereunder, the Holder(s) of the Representative's Warrants
shall have the right at any time and from time to time as specified in Section 1
hereof, to exercise the Representative's Warrants in full or in part by
surrendering the Warrant Certificate in the manner specified in Section 4.1 in
exchange



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for the number of Units equal to the product of (x) the number of Units as to
which the Representative's Warrants are being exercised, multiplied by (y) a
fraction, the numerator of which is the Market Price of the Units (as defined in
Section 9.3(d) hereof) on the date on which the form of election attached hereto
is deemed to have been sent to the Company pursuant to Section 15 hereof minus
the Exercise Price of the Units and the denominator of which is the Market Price
per Unit; provided, however, that if on the date on which the form of election
attached hereto is deemed to have been sent to the Company pursuant to Section
15 the Units have been separated and each of the Common Stock and the Warrants
underlying the Representative's Warrant are separately listed and traded, for
the purposes of this Section 4.2, the Representative's Warrant shall be treated
as two separate warrants: one for the underlying Common Stock and one for the
underlying Warrants. In such event, this Section 4.2 shall be applicable for
both such Representative's Warrants and "Market Price" shall mean the respective
Market Price for the Common Stock and for the Warrants.

               5. Issuance of Certificates. Upon the exercise of the
Representative's Warrant, the issuance of certificates for Units or other
securities, properties or rights underlying such Representative's Warrant shall
be made forthwith (and in any event within five (5) business days thereafter)
without charge to the Holder thereof including, without limitation, any tax
which may be payable in respect of the issuance thereof, and such certificates
shall (subject to the provisions of Sections 7 and 9 hereof) be issued in the
name of, or in such names as may be directed by, the Holder thereof; provided,
however, that the Company shall not be required to pay any tax which may be
payable in respect of any transfer involved in the issuance and delivery of any



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such certificates in a name other than that of the Holder and the Company shall
not be required to issue or deliver such certificates unless or until the person
or persons requesting the issuance thereof shall have paid to the Company the
amount of such tax or shall have established to the satisfaction of the Company
that such tax has been paid.

               The Representative's Warrant Certificates and the certificates
representing the Units or other securities, property or rights issued upon
exercise of the Representative's Warrant shall be executed on behalf of the
Company by the manual or facsimile signature of the then present President or
any Vice President of the Company under its corporate seal reproduced thereon,
attested to by the manual or facsimile signature of the then present Secretary
or any Assistant Secretary of the Company. Representative's Warrant Certificates
shall be dated the date of execution by the Company upon initial issuance,
division, exchange, substitution or transfer.

               6. Transfer of Representative's Warrant. The Representative's
Warrant shall be transferable only on the books of the Company maintained at its
principal office, where its principal office may then be located, upon delivery
thereof duly endorsed by the Holder or by its duly authorized attorney or
representative accompanied by proper evidence of succession, assignment or
authority to transfer. Upon any registration transfer, the Company shall execute
and deliver the new Representative's Warrant to the person entitled thereto.

               7. Restriction On Transfer of Representative's Warrant. The
Holder of a Representative's Warrant Certificate, by its acceptance thereof,
covenants and agrees that the



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Representative's Warrant is being acquired as an investment and not with a view
to the distribution thereof, and that the Representative's Warrant may not be
sold, transferred, assigned, hypothecated or otherwise disposed of, in whole or
in part, for the term of the Representative's Warrant, except to officers or
partners of the Underwriters, or by operation of law.

               8. Exercise Price and Number of Securities. Except as otherwise
provided in Section 10 hereof, each Representative's Warrant is exercisable to
purchase one Unit at an initial exercise price equal to the Exercise Price. The
Exercise Price and the number of Units for which the Representative's Warrant
may be exercised shall be the price and the number of Units which shall result
from time to time from any and all adjustments in accordance with the provisions
of Section 11 hereof.

               9.   Registration Rights.

                    9.1 Registration Under the Securities Act of 1933. Each
Representative's Warrant Certificate and each certificate representing Units and
any of the other securities issuable upon exercise of the Representative's
Warrant (collectively, the "Warrant Shares") shall bear the following legend
unless (i) such Representative's Warrant or Warrant Shares are distributed to
the public or sold to the underwriters for distribution to the public pursuant
to Section 9 hereof or otherwise pursuant to a registration statement filed
under the Securities Act of 1933, as amended (the "Act"), or (ii) the Company
has received an opinion of counsel, in



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form and substance reasonably satisfactory to counsel for the Company, that such
legend is unnecessary for any such certificate:

               THE REPRESENTATIVE'S WARRANT REPRESENTED BY THIS CERTIFICATE AND
               THE OTHER SECURITIES ISSUABLE UPON EXERCISE THEREOF MAY NOT BE
               OFFERED OR SOLD EXCEPT PURSUANT TO (i) AN EFFECTIVE REGISTRATION
               STATEMENT UNDER THE SECURITIES ACT OF 1933, (ii) TO THE EXTENT
               APPLICABLE, RULE 144 UNDER SUCH ACT (OR ANY SIMILAR RULE UNDER
               SUCH ACT RELATING TO THE DISPOSITION OF SECURITIES), OR (iii) AN
               OPINION OF COUNSEL, IF SUCH OPINION SHALL BE REASONABLY
               SATISFACTORY TO COUNSEL FOR THE ISSUER, THAT AN EXEMPTION FROM
               REGISTRATION UNDER SUCH ACT IS AVAILABLE.

               THE TRANSFER OR EXCHANGE OF THE REPRESEN-
               TATIVE'S WARRANT REPRESENTED BY THE
               CERTIFICATE IS RESTRICTED IN ACCORDANCE WITH
               THE REPRESENTATIVE'S WARRANT AGREEMENT
               REFERRED TO HEREIN.


                    9.2 Piggyback Registration. If, at any time commencing after
the effective date of the Registration Statement and expiring five (5) years
thereafter, the Company proposes to register any of its securities under the Act
(other than in connection with a merger or pursuant to Form S-4 or Form S-8) it
will give written notice by registered mail, at least thirty (30) days prior to
the filing of each such registration statement, to the Holders of the
Representative's Warrants and/or the Warrant Shares of its intention to do so.
If any of the Holders of the Representative's Warrants and/or Warrant Shares
notify the Company within twenty (20) days after mailing of any such notice of
its or their desire to include any such securities in such



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proposed registration statement, the Company shall afford such Holders of the
Representative's Warrants and/or Warrant Shares the opportunity to have any such
Representative's Warrants and/or Warrant Shares registered under such
registration statement. In the event that the managing underwriter for said
offering advises the Company in writing that in their opinion the number of
securities requested to be included in such registration exceeds the number
which can be sold in such offering without causing a diminution in the offering
price or otherwise adversely affecting the offering, the Company will include in
such registration (a) first, the securities the Company proposes to sell, (b)
second, the securities held by the entities that made the demand for
registration, (c) third, the Representative's Warrants and/or Warrant Shares
requested to be included in such registration which in the opinion of such
underwriter can be sold, pro rata among the Holders of Representative's Warrants
and/or Warrant Shares on the basis of the number of Representative's Warrants
and/or Warrant Shares requested to be registered by such Holders, and (d)
fourth, other securities requested to be included in such registration.

               Notwithstanding the provisions of this Section 9.2, the Company
shall have the right at any time after it shall have given written notice
pursuant to this Section 9.2 (irrespective of whether a written request for
inclusion of any such securities shall have been made) to elect not to file any
such proposed registration statement or to withdraw the same after the filing
but prior to the effective date thereof.



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                    9.3   Demand Registration.

                         (a) At any time commencing one (1) year after the
effective date of the Registration Statement and expiring five (5) years from
the effective date of the Registration Statement, the Holders of the
Representative's Warrants and/or Warrant Shares representing a "Majority" (as
hereinafter defined) of the Representative's Warrants and/or Warrant Shares
shall have the right (which right is in addition to the registration rights
under Section 9.2 hereof), exercisable by written notice to the Company, to have
the Company prepare and file with the Securities and Exchange Commission (the
"Commission"), on one occasion, a registration statement and such other
documents, including a prospectus, as may be necessary in the opinion of both
counsel for the Company and counsel for the Holders, in order to comply with the
provisions of the Act, so as to permit a public offering and sale by such
Holders and any other Holders of the Representative's Warrant and/or Warrant
Shares who notify the Company within fifteen (15) days after the Company mails
notice of such request pursuant to Section 9.3(b) hereof (collectively, the
"Requesting Holders") of their respective Warrant Shares for the earlier of (i)
six (6) consecutive months or (ii) until the sale of all of the Warrant Shares
requested to be registered by the Requesting Holders. 

                         (b) The Company covenants and agrees to give written
notice of any registration request under this Section 9.3 by any Holder or
Holders representing a Majority of the Representative's Warrants and/or Warrant
Shares to all other registered Holders of the Representative's Warrants and the
Warrant Shares within ten (10) days from the date of the receipt of any such
registration request.



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                         (c) In addition to the registration rights under
Section 9.2 and subsection (a) of this Section 9.3, at any time commencing one
(1) year after the effective date of the Registration Statement and expiring
five (5) years from the effective date of the Registration Statement, the
Holders of a Majority of the Representative's Warrants and/or Warrant Shares
shall have the right on one occasion, exercisable by written request to the
Company, to have the Company prepare and file with the Commission a registration
statement so as to permit a public offering and sale by such Holders of their
respective Warrant Shares for the earlier of (i) six (6) consecutive months or
(ii) until the sale of all of the Warrant Shares requested to be registered by
such Holders; provided, however, that the provisions of Section 9.4(b) hereof
shall not apply to any such registration request and registration and all costs
incident thereto shall be at the expense of the Holder or Holders making such
request. If the Holders have exercised their rights under Section 9.3(a) then
the Holders may not exercise their rights under Section 9.3(c) for a period of
six (6) months following the effective date of any registration statement filed
pursuant to Section 9.3(a). 

                         (d) Notwithstanding anything to the contrary contained
herein, if the Company shall not have filed a registration statement for the
Warrant Shares within the time period specified in Section 9.4(a) hereof
pursuant to the written notice specified in Section 9.3(a) of the Holders of a
Majority of the Representative's Warrants and/or Warrant Shares, the Company, at
its option, may repurchase (i) any and all Warrant Shares at the higher of the
Market Price (as defined in Section 9.3(e)) per share of Common Stock on (x) the
date of the notice sent pursuant to Section 9.3(a) or (y) the expiration of the
period specified in Section



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9.4(a) and (ii) any and all Representative's Warrant at such Market Price less
the exercise price of such Representative's Warrant. Such repurchase shall be in
immediately available funds and shall close within two (2) days after the later
of (i) the expiration of the period specified in Section 9.4(a) or (ii) the
delivery of the written notice of election specified in this Section 9.3(d).

                         (e) Definition of Market Price. As used herein, the
phrase "Market Price" at any date shall be deemed to be the last reported sale
price, or, in case no such reported sale takes place on such day, the average of
the last reported sale prices for the last three (3) trading days, in either
case as officially reported by the principal securities exchange on which the
Units or Common Stock is listed or admitted to trading, or, if the Units or
Common Stock is not listed or admitted to trading on any national securities
exchange, the average closing sale price as furnished by the NASD through The
Nasdaq Stock Market, Inc. ("Nasdaq") or similar organization if Nasdaq is no
longer reporting such information, or if the Units or Common Stock is not quoted
on Nasdaq, as determined in good faith by resolution of the Board of Directors
of the Company, based on the best information available to it.

                    9.4 Covenants of the Company With Respect to Registration.
In connection with any registration under Sections 9.2 or 9.3 hereof, the
Company covenants and agrees as follows:

                         (a) The Company shall use its best efforts to file a
registration statement within ninety (90) days of receipt of any demand
therefor, and to have any registration



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statements declared effective at the earliest possible time, and shall furnish
each Holder desiring to sell Warrant Shares such number of prospectuses as shall
reasonably be requested.

                         (b) The Company shall pay all costs (excluding fees and
expenses of Holder(s)' counsel and any underwriting or selling commissions),
fees and expenses in connection with all registration statements filed pursuant
to Sections 9.2 and 9.3(a) hereof including, without limitation, the Company's
legal and accounting fees, printing expenses, blue sky fees and expenses. The
Holder(s) will pay all costs, fees and expenses (including those of the Company)
in connection with the registration statement filed pursuant to Section 9.3(c).


                         (c) The Company will take all necessary action which
may be required in qualifying or registering the Warrant Shares included in a
registration statement for offering and sale under the securities or blue sky
laws of such states as reasonably are requested by the Holder(s), provided that
the Company shall not be obligated to execute or file any general consent to
service of process or to qualify as a foreign corporation to do business under
the laws of any such jurisdiction.

                         (d) The Company shall indemnify the Holder(s) of the
Warrant Shares to be sold pursuant to any registration statement and each
person, if any, who controls such Holders within the meaning of Section 15 of
the Act or Section 20(a) of the Securities Exchange Act of 1934, as amended
("Exchange Act"), against all loss, claim, damage, expense or liability
(including all expenses reasonably incurred in investigating, preparing or
defending against any claim whatsoever) to which any of them may become subject
under the Act, the Exchange Act



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or otherwise, arising from such registration statement but only to the same
extent and with the same effect as the provisions pursuant to which the Company
has agreed to indemnify each of the Underwriters contained in Section 7 of the
Underwriting Agreement.

                         (e) The Holder(s) of the Warrant Shares to be sold
pursuant to a registration statement, and their successors and assigns, shall
severally, and not jointly, indemnify the Company, its officers and directors
and each person, if any, who controls the Company within the meaning of Section
15 of the Act or Section 20(a) of the Exchange Act, against all loss, claim,
damage or expense or liability (including all expenses reasonably incurred in
investigating, preparing or defending against any claim whatsoever) to which
they may become subject under the Act, the Exchange Act or otherwise, arising
from information furnished by or on behalf of such Holders, or their successors
or assigns, for specific inclusion in such registration statement to the same
extent and with the same effect as the provisions contained in Section 7 of the
Underwriting Agreement pursuant to which the Underwriters have agreed to
indemnify the Company.

                         (f) Nothing contained in this Agreement shall be
construed as requiring the Holder(s) to exercise their Representative's Warrant
prior to the initial filing of any registration statement or the effectiveness
thereof.

                         (g) The Company shall not permit the inclusion of any
securities other than the Warrant Shares to be included in any registration
statement filed pursuant to Section 9.3 hereof, or permit any other registration
statement to be or remain effective during the



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effectiveness of a registration statement filed pursuant to Section 9.3 hereof,
without the prior written consent of National Securities Corporation or as
otherwise required by the terms of any existing registration rights granted
prior to the date of this Agreement by the Company to the holders of any of the
Company's securities.

                         (h) The Company shall furnish to each Holder
participating in the offering and to each underwriter, if any, a signed
counterpart, addressed to such Holder or underwriter, of (i) an opinion of
counsel to the Company, dated the effective date of such registration statement
(and, if such registration includes an underwritten public offering, an opinion
dated the date of the closing under the underwriting agreement), and (ii) a
"cold comfort" letter dated the effective date of such registration statement
(and, if such registration includes an underwritten public offering, a letter
dated the date of the closing under the underwriting agreement) signed by the
independent public accountants who have issued a report on the Company's
financial statements included in such registration statement, in each case
covering substantially the same matters with respect to such registration
statement (and the prospectus included therein) and, in the case of such
accountants' letter, with respect to events subsequent to the date of such
financial statements, as are customarily covered in opinions of issuer's counsel
and in accountants' letters delivered to underwriters in underwritten public
offerings of securities.

                         (i) The Company shall as soon as practicable after the
effective date of the registration statement, and in any event within 15 months
thereafter, make "generally



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available to its security holders" (within the meaning of Rule 158 under the
Act) an earnings statement (which need not be audited) complying with Section
11(a) of the Act and covering a period of at least 12 consecutive months
beginning after the effective date of the registration statement.

                         (j) The Company shall enter into an underwriting
agreement with the managing underwriters selected for such underwriting by
Holders holding a Majority of the Warrant Shares requested to be included in
such underwriting, which may be the Representative. Such agreement shall be
satisfactory in form and substance to the Company, each Holder and such managing
underwriters, and shall contain such representations, warranties and covenants
by the Company and such other terms as are customarily contained in agreements
of that type used by the managing underwriter. The Holders shall be parties to
any underwriting agreement relating to an underwritten sale of their Warrant
Shares and may, at their option, require that any or all the representations,
warranties and covenants of the Company to or for the benefit of such
underwriters shall also be made to and for the benefit of such Holders. Such
Holders shall not be required to make any representations or warranties to or
agreements with the Company or the underwriters except as they may relate to
such Holders and their intended methods of distribution.

                         (k) For purposes of this Agreement, the term "Majority"
in reference to the Representative's Warrants or Warrant Shares, shall mean in
excess of fifty percent (50%) of the then outstanding Representative's Warrants
or Warrant Shares that (i) are not held by the



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Company, an affiliate, officer, creditor, employee or agent thereof or any of
their respective affiliates, members of their family, persons acting as nominees
or in conjunction therewith or (ii) have not been resold to the public pursuant
to a registration statement filed with the Commission under the Act.

               10. Obligations of Holders. It shall be a condition precedent to
the obligations of the Company to take any action pursuant to Section 9 hereof
that each of the selling Holders shall:

                         (a) Furnish to the Company such information regarding
themselves, the Warrant Shares held by them, the intended method of sale or
other disposition of such securities, the identity of and compensation to be
paid to any underwriters proposed to be employed in connection with such sale or
other disposition, and such other information as may reasonably be required to
effect the registration of their Warrant Shares.

                         (b) Notify the Company, at any time when a prospectus
relating to the Warrant Shares covered by a registration statement is required
to be delivered under the Act, of the happening of any event with respect to
such selling Holder as a result of which the prospectus included in such
registration statement, as then in effect, includes an untrue statement of a
material fact or omits to state a material fact required to be stated therein or
necessary to make the statements therein not misleading in the light of the
circumstances then existing.

               11. Adjustments to Exercise Price and Number of Securities. The
Exercise Price in effect at any time and the number and kind of securities
purchased upon the exercise



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of the Representative's Warrant shall be subject to adjustment from time to time
only upon the happening of the following events:

                    11.1 Stock Dividend, Subdivision and Combination. In case
the Company shall (i) declare a dividend or make a distribution on its
outstanding shares of Common Stock in shares of Common Stock, (ii) subdivide or
reclassify its outstanding shares of Common Stock into a greater number of
shares, or (iii) combine or reclassify its outstanding shares of Common Stock
into a smaller number of shares, the Exercise Price in effect at the time of the
record date for such dividend or distribution or of the effective date of such
subdivision, combination or reclassification shall be adjusted so that it shall
equal the price determined by multiplying the Exercise Price by a fraction, the
denominator of which shall be the number of shares of Common Stock outstanding
after giving effect to such action, and the numerator of which shall be the
number of shares of Common Stock outstanding immediately prior to such action.
Such adjustment shall be made successively whenever any event listed above shall
occur.

                    11.2 Adjustment in Number of Securities. Upon each
adjustment of the Exercise Price pursuant to the provisions of this Section 11,
the number of Warrant Shares issuable upon the exercise at the adjusted Exercise
Price of each Representative's Warrant shall be adjusted to the nearest number
of whole shares of Common Stock by multiplying a number equal to the Exercise
Price in effect immediately prior to such adjustment by the number of Warrant
Shares issuable upon exercise of the Representative's Warrant immediately prior
to such adjustment and dividing the product so obtained by the adjusted Exercise
Price.



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                    11.3 Definition of Common Stock. For the purpose of this
Agreement, the term "Common Stock" shall mean (i) the class of stock designated
as Common Stock in the Articles of Incorporation of the Company as amended as of
the date hereof, or (ii) any other class of stock resulting from successive
changes or reclassifications of such Common Stock consisting solely of changes
in par value, or from par value to no par value, or from no par value to par
value.

                    11.4 Merger or Consolidation. In case of any consolidation
of the Company with, or merger of the Company into, another corporation (other
than a consolidation or merger which does not result in any reclassification or
change of the outstanding Common Stock), the corporation formed by such
consolidation or merger shall execute and deliver to the Holder a supplemental
warrant agreement providing that the Holder of each Representative's Warrant
then outstanding or to be outstanding shall have the right thereafter (until the
expiration of such Representative's Warrant) to receive, upon exercise of such
Representative's Warrant, the kind and amount of shares of stock and other
securities and property receivable upon such consolidation or merger by a holder
of the number of shares of Common Stock for which such Representative's Warrant
might have been exercised immediately prior to such consolidation, merger, sale
or transfer. Such supplemental warrant agreement shall provide for adjustments
which shall be identical to the adjustments provided in Section 11. The above
provision of this subsection shall similarly apply to successive consolidations
or mergers.



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                    11.5 No Adjustment of Exercise Price in Certain Cases. No
adjustment of the Exercise Price shall be made:

                         (a) Upon the issuance or sale of the Representative's
Warrant or the Warrant Shares;

                         (b) Upon the issuance or sale of Common Stock (or any
other security convertible, exercisable, or exchangeable into shares of Common
Stock) upon the direct or indirect conversion, exercise, or exchange of any
options, rights, warrants, or other securities or indebtedness of the Company
outstanding as of the date of this Agreement or granted pursuant to any stock
option plan of the Company in existence as of the date of this Agreement,
pursuant to the terms thereof; or

                         (c) If the amount of said adjustment shall be less than
two cents ($.02) per share, provided, however, that in such case any adjustment
that would otherwise be required then to be made shall be carried forward and
shall be made at the time of and together with the next subsequent adjustment
which, together with any adjustment so carried forward, shall amount to at least
two cents ($.02) per Representative's Warrant.

                    11.6 Adjustment of Warrants' Exercise Price. With respect to
any of the Warrants whether or not the Warrants have been exercised (or are
exercisable) and whether or not the Warrants are issued and outstanding, the
Warrant exercise price and the number of shares of Common stock underlying such
Warrants shall be automatically adjusted in accordance



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with Section 8 of the Warrant Agreement between the Company and Continental
Stock Transfer & Trust Company dated _________, 1998 (the "Warrant Agreement"),
upon the occurrence of any of the events described therein. Thereafter, the
underlying Warrants shall be exercisable at such adjusted Warrant exercise price
for such adjusted number of underlying shares of Common Stock or other
securities, properties or rights.

                    11.7. Exchange and Replacement of Representative's Warrant
Certificates. Each Representative's Warrant Certificate is exchangeable, without
expense, upon the surrender thereof by the registered Holder at the principal
executive office of the Company for a new Representative's Warrant Certificate
of like tenor and date representing in the aggregate the right to purchase the
same number of Warrant Shares in such denominations as shall be designated by
the Holder thereof at the time of such surrender.

               Upon receipt by the Company of evidence reasonably satisfactory
to it of the loss, theft, destruction or mutilation of any Representative's
Warrant Certificate, and, in case of loss, theft or destruction, of indemnity or
security reasonably satisfactory to it and reimbursement to the Company of all
reasonable expenses incidental thereto, and upon surrender and cancellation of
the Representative's Warrant, if mutilated, the Company will make and deliver a
new Warrant Certificate of like tenor, in lieu thereof.

               12. Elimination of Fractional Interests. The Company shall not be
required to issue certificates representing fractions of shares of Common Stock
upon the exercise of the Representative's Warrant, nor shall it be required to
issue scrip or pay cash in lieu of fractional



                                      -20-

   22



interests, it being the intent of the parties that all fractional interests
shall be eliminated by rounding any fraction up to the nearest whole number of
shares of Common Stock or other securities, properties or rights.

               13. Reservation and Listing of Securities. The Company shall at
all times reserve and keep available out of its authorized shares of Common
Stock, solely for the purpose of issuance upon the exercise of the
Representative's Warrant and the Warrant, such number of shares of Common Stock
or other securities, properties or rights as shall be issuable upon the exercise
thereof. Every transfer agent ("Transfer Agent") for the Common Stock and other
securities of the Company issuable upon the exercise of the Representative's
Warrant will be irrevocably authorized and directed at all times to reserve such
number of authorized shares of Common Stock and other securities as shall be
requisite for such purpose. The Company will keep a copy of this Agreement on
file with every Transfer Agent for the Common Stock and other securities of the
Company issuable upon the exercise of the Representative's Warrant. The Company
will supply every such Transfer Agent with duly executed stock and other
certificates, as appropriate, for such purpose. The Company covenants and agrees
that, upon exercise of the Representative's Warrant and payment of the Exercise
Price therefor, all shares of Common Stock and other securities issuable upon
such exercise shall be duly and validly issued, fully paid, non-assessable and
not subject to the preemptive rights of any stockholder. As long as the
Representative's Warrant shall be outstanding, the Company shall use its best
efforts to cause all shares of Common Stock issuable upon the exercise of the
Representative's Warrant to be listed (subject to official notice of issuance)
on all securities exchanges on which the Common



                                      -21-

   23



Stock issued to the public in connection herewith may then be listed and/or
quoted on Nasdaq SmallCap Market.

               14. Notices to Representative's Warrant Holders. Nothing
contained in this Agreement shall be construed as conferring upon the Holders
the right to vote or to consent or to receive notice as a stockholder in respect
of any meetings of stockholders for the election of directors or any other
matter, or as having any rights whatsoever as a stockholder of the Company. If,
however, at any time prior to the expiration of the Representative's Warrants
and their exercise, any of the following events shall occur:

                      (a) the Company shall take a record of the holders of its
shares of Common Stock for the purpose of entitling them to receive a dividend
or distribution payable otherwise than in cash, or a cash dividend or
distribution payable otherwise than out of current or retained earnings, as
indicated by the accounting treatment of such dividend or distribution on the
books of the Company; or

                      (b) the Company shall offer to all the holders of its
Common Stock any additional shares of capital stock of the Company or securities
convertible into or exchangeable for shares of capital stock of the Company, or
any option, right or warrant to subscribe therefor; or



                                      -22-

   24



                      (c) a dissolution, liquidation or winding up of the
Company (other than in connection with a consolidation or merger) or a sale of
all or substantially all of its property, assets and business as an entirety
shall be proposed;

then in any one or more of said events, the Company shall give written notice of
such event at least fifteen (15) days prior to the date fixed as a record date
or the date of closing the transfer books for the determination of the
stockholders entitled to such dividend, distribution, convertible or
exchangeable securities or subscription rights, or entitled to vote on such
proposed dissolution, liquidation, winding up or sale. Such notice shall specify
such record date or the date of closing the transfer books, as the case may be.
Failure to give such notice or any defect therein shall not affect the validity
of any action taken in connection with the declaration or payment of any such
dividend, or the issuance of any convertible or exchangeable securities, or
subscription rights, options or warrants, or any proposed dissolution,
liquidation, winding up or sale.

               15. Notices. All notices, requests, consents and other
communications hereunder shall be in writing and shall be deemed to have been
duly made and sent when delivered, or mailed by registered or certified mail,
return receipt requested:

                      (a) if to the registered Holder of the Representative's
Warrant, to the address of such Holder as shown on the books of the Company; or



                                      -23-

   25



                      (b) if to the Company, to the address set forth in Section
4 hereof or to such other address as the Company may designate by notice to the
Holders.

               16.  Warrants.  The form of the certificate representing Warrants
(and the form of election to purchase shares of Common Stock upon the exercise
of Warrants and the form of assignment period on the reverse thereof) shall be
substantially as set forth in Exhibit "A" to the Warrant Agreement. Each Warrant
issuable upon exercise of the Representative's Warrants shall evidence the right
to initially purchase one fully paid and non-assessable share of Common Stock at
an initial purchase price of $_____ per share commencing on the Initial Exercise
Date and ending at 5:00 p.m. New York time on the Warrant Expiration Date at
which time the Warrant shall expire. The exercise price of the Warrants and the
number of shares of Common Stock issuable upon the exercise of the Warrants are
subject to adjustment, whether or not the Representative's Warrants have been
exercised and the Warrants have been issued, in the manner and upon the
occurrence of the events set forth in Section 8 of the Warrant Agreement, which
is hereby incorporated herein by reference and made a part hereof as if set
forth in its entirety herein. Subject to the provisions of this Agreement and
upon issuance of the Warrants underlying the Representative's Warrants, each
registered holder of such Warrants shall have the right to purchase from the
Company (and the Company shall issue to such registered holders) up to the
number of fully paid and non-assessable shares of Common Stock (subject to
adjustment as provided herein and in the Warrant Agreement), free and clear of
all preemptive rights of stockholders, provided that such registered holder
complies with the terms governing exercise of the Warrants set forth in the
Warrant Agreement, and pays the applicable exercise



                                      -24-

   26



price, determined in accordance with the terms of the Warrant Agreement. Upon
exercise of the Warrants, the Company shall forthwith issue to the registered
holder of any such Warrant in his name or in such name as may be directed by
him, certificates for the number of shares of Common Stock so purchased. Except
as otherwise provided herein, the Warrants underlying the Representative's
Warrants shall be governed in all respects by the terms of the Warrant
Agreement. The Warrants shall be transferable in the manner provided in the
Warrant Agreement, and upon any such transfer, a new Warrant Certificate shall
be issued promptly to the transferee. The Company covenants to, and agrees with,
the Holder(s) that without the prior written consent of the Holder(s), the
Warrant Agreement will not be modified, amended, cancelled, altered or
superseded, and that the Company will send to each Holder, irrespective of
whether or not the Warrants have been exercised, any and all notices required by
the Warrant Agreement to be sent to holders of Warrants.

               17. Supplements; Amendments; Entire Agreement. This Agreement
(including the Underwriting Agreement to the extent portions thereof are
referred to herein) contains the entire understanding between the parties hereto
with respect to the subject matter hereof and may not be modified or amended
except by a writing duly signed by the party against whom enforcement of the
modification or amendment is sought. The Company and the Representative may from
time to time supplement or amend this Agreement without the approval of any
holders of Representative's Warrant Certificates (other than the Representative)
in order to cure any ambiguity, to correct or supplement any provision contained
herein which may be defective or inconsistent with any provisions herein, or to
make any other provisions in regard to matters or



                                      -25-

   27



questions arising hereunder which the Company and the Representative may deem
necessary or desirable and which the Company and the Representative deem shall
not adversely affect the interests of the Holders of Representative's Warrant
Certificates.

               18. Successors. All of the covenants and provisions of this
Agreement shall be binding upon and inure to the benefit of the Company, the
Holders and their respective successors and assigns hereunder.

               19. Survival of Representations and Warranties. All statements in
any schedule, exhibit or certificate or other instrument delivered by or on
behalf of the parties hereto, or in connection with the transactions
contemplated by this Agreement, shall be deemed to be representations and
warranties hereunder. Notwithstanding any investigations made by or on behalf of
the parties to this Agreement, all representations, warranties and agreements
made by the parties to this Agreement or pursuant hereto shall survive.

               20. Governing Law. This Agreement and each Representative's
Warrant Certificate issued hereunder shall be deemed to be a contract made under
the laws of the State of New York and for all purposes shall be construed in
accordance with the laws of said State without giving effect to the rules of
said State governing the conflicts of laws.

               21. Severability. If any provision of this Agreement shall be
held to be invalid or unenforceable, such invalidity or unenforceability shall
not affect any other provision of this Agreement.



                                      -26-

   28



               22. Captions. The caption headings of the Sections of this
Agreement are for convenience of reference only and are not intended, nor should
they be construed as, a part of this Agreement and shall be given no substantive
effect.

               23. Benefits of this Agreement. Nothing in this Agreement shall
be construed to give to any person or corporation other than the Company and the
Representative and any other registered Holder(s) of the Representative's
Warrant Certificates or Warrant Shares any legal or equitable right, remedy or
claim under this Agreement; and this Agreement shall be for the sole and
exclusive benefit of the Company and the Underwriters and any other Holder(s) of
the Representative's Warrant Certificates or Warrant Shares.



                                      -27-

   29



               24. Counterparts. This Agreement may be executed in any number of
counterparts and each of such counterparts shall for all purposes be deemed to
be an original, and such counterparts shall together constitute but one and the
same instrument.

               IN WITNESS OF, the parties hereto have caused this Agreement to
be duly executed, as of the day and year first above written.


ATTEST:                               BRIGHTON TECHNOLOGIES CORPORATION



                                      By:
- -------------------------               ----------------------------------------
Warren Wang                               Name: Kit Kung
Secretary                                 Title: President and Chief Operating 
                                                 Officer





                                      NATIONAL SECURITIES CORPORATION



                                      By:
                                         ---------------------------------------
                                          Name: Steven A. Rothstein
                                          Title: Chairman



                                      -28-


   30



                                    EXHIBIT A

                 [FORM OF REPRESENTATIVE'S WARRANT CERTIFICATE]

THE REPRESENTATIVE'S WARRANT REPRESENTED BY THIS CERTIFICATE AND THE OTHER
SECURITIES ISSUABLE UPON EXERCISE THEREOF MAY NOT BE OFFERED OR SOLD EXCEPT
PURSUANT TO (i) AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF
1933, (ii) TO THE EXTENT APPLICABLE, RULE 144 UNDER SUCH ACT (OR ANY SIMILAR
RULE UNDER SUCH ACT RELATING TO THE DISPOSITION OF SECURITIES), OR (iii) AN
OPINION OF COUNSEL, IF SUCH OPINION SHALL BE REASONABLY SATISFACTORY TO COUNSEL
FOR THE ISSUER, THAT AN EXEMPTION FROM REGISTRATION UNDER SUCH ACT IS AVAILABLE.

THE TRANSFER OR EXCHANGE OF THE REPRESENTATIVE'S WARRANT
REPRESENTED BY THIS CERTIFICATE IS RESTRICTED IN ACCORDANCE WITH THE
WARRANT AGREEMENT REFERRED TO HEREIN.

                            EXERCISABLE ON OR BEFORE
                    5:30 P.M., NEW YORK TIME, ______ __, 2003

                          Representative's Warrant No.

                                  100,000 Units


                               WARRANT CERTIFICATE

               This Warrant Certificate certifies that National Securities
Corporation, or its registered assigns, is the registered holder of Warrants to
purchase initially, at any time from ________, 1999 until 5:30 p.m., New York
time on _________, 2003 ("Expiration Date"), up to 100,000 Units (the "Units"),
each Unit consisting of one (1) share of fully-paid and non-assessable common
stock, $.001 par value ("Common Stock") of Brighton Technologies Corporation, a
Delaware corporation (the "Company") and one (1) warrant to purchase one (1)
share of Common Stock at an exercise price of $_______ of the Company, at the
initial exercise price, subject to adjustment in certain events, of $______ per
Unit (the "Exercise Price") upon surrender of this Representative's Warrant
Certificate and payment of the Exercise Price at an office or agency of the
Company, but subject to the conditions set forth herein and in the
Representative's Warrant Agreement dated as of __________, 1998 among the
Company and National Securities Corporation (the "Warrant Agreement"). Payment
of the Exercise Price shall be made by certified or official bank check in New
York Clearing House funds payable to the order of the Company.



                                    EXH. A-1

   31




               No Warrant may be exercised after 5:30 p.m., New York time, on
the Expiration Date, at which time all Representative's Warrant evidenced
hereby, unless exercised prior thereto, shall thereafter be void.

               The Representative's Warrants evidenced by this Warrant
Certificate are part of a duly authorized issue of Representative's Warrants
issued pursuant to the Warrant Agreement, which Warrant Agreement is hereby
incorporated by reference in and made a part of this instrument and is hereby
referred to for a description of the rights, limitation of rights, obligations,
duties and immunities thereunder of the Company and the holders (the words
"holders" or "holder" meaning the registered holders or registered holder) of
the Representative's Warrant.

               The Warrant Agreement provides that upon the occurrence of
certain events the Exercise Price and the type and/or number of the Company's
securities issuable thereupon may, subject to certain conditions, be adjusted.
In such event, the Company will, at the request of the holder, issue a new
Warrant Certificate evidencing the adjustment in the Exercise Price and the
number and/or type of securities issuable upon the exercise of the
Representative's Warrant; provided, however, that the failure of the Company to
issue such new Warrant Certificates shall not in any way change, alter, or
otherwise impair, the rights of the holder as set forth in the Warrant
Agreement.

               Upon due presentment for registration of transfer of this Warrant
Certificate at an office or agency of the Company, a new Warrant Certificate or
Warrant Certificates of like tenor and evidencing in the aggregate a like number
of Representative's Warrant shall be issued to the transferee(s) in exchange for
this Warrant Certificate, subject to the limitations provided herein and in the
Warrant Agreement, without any charge except for any tax or other governmental
charge imposed in connection with such transfer.

               Upon the exercise of less than all of the Representative's
Warrant evidenced by this Certificate, the Company shall forthwith issue to the
holder hereof a new Warrant Certificate representing such numbered unexercised
Representative's Warrant.

               The Company may deem and treat the registered holder(s) hereof as
the absolute owner(s) of this Warrant Certificate (notwithstanding any notation
of ownership or other writing hereon made by anyone), for the purpose of any
exercise hereof, and of any distribution to the holder(s) hereof, and for all
other purposes, and the Company shall not be affected by any notice to the
contrary.

               All terms used in this Warrant Certificate which are defined in
the Warrant Agreement shall have the meanings assigned to them in the Warrant
Agreement.




                                    EXH. A-2

   32



               This Warrant Certificate does not entitle any holder thereof to
any of the rights of a shareholder of the Company.

               IN WITNESS WHEREOF, the Company has caused this Warrant
Certificate to be duly executed under its corporate seal.

Dated as of ________, 1998.


ATTEST:                              BRIGHTON TECHNOLOGIES CORPORATION



                                     By:
- ------------------------------          ----------------------------------------
Warren Wang                             Name:Kit Kung
Secretary                               Title: President and Chief Operating 
                                               Officer






                                    EXH. A-3

   33



             [FORM OF ELECTION TO PURCHASE PURSUANT TO SECTION 3.11]


               The undersigned hereby irrevocably elects to exercise the right,
represented by this Warrant Certificate, to purchase Units and herewith tenders
in payment for such securities a certified or official bank check payable in New
York Clearing House Funds to the order of Brighton Technologies Corporation (the
"Company") in the amount of $_____, all in accordance with the terms of Section
3.1 of the Representative's Warrant Agreement dated as of __________, 1998 among
the Company and National Securities Corporation. The undersigned requests that a
certificate for such securities be registered in the name of ___________________
__________________________, whose address is ___________________________________
and that such certificate be delivered to____________________ , whose address is
_____________________, and if said number of shares shall not be all the shares 
purchasable hereunder, that a new Warrant Certificate for the balance of the 
shares purchasable under the within Warrant Certificate be registered in the 
name of the undesigned warrantholder or his assignee as below indicated and 
delivered to the address stated below.


Dated: _____________________


                                   Signature:__________________________________
                                            (Signature must conform in all 
                                             respects to name of holder as 
                                             specified on the face of the 
                                             Warrant Certificate.) 

                          Address: _____________________________________________

                                   _____________________________________________


                          ------------------------------------------------------
                          (Insert Social Security or Other Identifying Number of
                          Holder)

Signature Guaranteed: __________________________________________________________
(Signature must be guaranteed by a bank savings and loan association,
stockbroker, or credit union with membership in an approved signature guaranty
Medallion Program pursuant to Securities Exchange Act Rule 17Ad-15.)



                                    EXH. A-4

   34


                              [FORM OF ASSIGNMENT]

             (TO BE EXECUTED BY THE REGISTERED HOLDER IF SUCH HOLDER
                  DESIRES TO TRANSFER THE WARRANT CERTIFICATE.)


FOR VALUE RECEIVED __________________ here sells, assigns and transfers unto
[NAME OF TRANSFEREE] this Warrant Certificate, together with all right, title
and interest therein, and does hereby irrevocably constitute and appoint
_________________________ Attorney, to transfer the within Warrant Certificate
on the books of the within-named Company, with full power of substitution.


Dated: _____________________________


                                      Signature: ______________________________
                                      (Signature must conform in all respects to
                                      name of holder as specified on the face of
                                      the Warrant Certificate.)
                                      Address: _________________________________

                                               _________________________________


                                      __________________________________________
                                      (Insert Social Security or Other 
                                       Identifying Number of Holder)


Signature Guaranteed: __________________________________________________________
(Signature must be guaranteed by a bank savings and loan association,
stockbroker, or credit union with membership in an approved signature guaranty
Medallion Program pursuant to Securities Exchange Act Rule 17Ad-15.)



                                          EXH. A-5