EXHIBIT 10.62


     THE WARRANTS REPRESENTED BY THIS CERTIFICATE AND THE OTHER SECURITIES
     ISSUABLE UPON EXERCISE THEREOF HAVE NOT BEEN REGISTERED UNDER THE
     SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), AND MAY NOT BE OFFERED OR
     SOLD EXCEPT (I) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE
     ACT, (II) TO THE EXTENT APPLICABLE, PURSUANT TO RULE 144 UNDER SUCH ACT (OR
     ANY SIMILAR RULE UNDER SUCH ACT RELATING TO THE DISPOSITION OF SECURITIES),
     OR (III) UPON THE DELIVERY BY THE HOLDER TO THE COMPANY OF AN OPINION OF
     COUNSEL, REASONABLY SATISFACTORY TO COUNSEL FOR THE ISSUER, STATING THAT AN
     EXEMPTION FROM REGISTRATION UNDER SUCH ACT IS AVAILABLE.


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

                            EXERCISABLE ON OR BEFORE
                5:00 P.M., EASTERN STANDARD TIME, OCTOBER 4, 2004

No.SCA-4                                                             One Warrant



                          SOVEREIGN WARRANT CERTIFICATE

     This Warrant Certificate certifies that Sovereign Capital Advisors, LLC
("Sovereign") or registered assigns, is the registered holder of One (1) Warrant
to purchase, at any time from March 31, 2000, until 5:00 P.M. Eastern Standard
Time on October 4, 2004 ("Expiration Date"), up to Ninety-Four Thousand Eight
Hundred Twenty-One (94,821) shares ("Shares") of fully-paid and non-assessable
common stock, par value $.01 ("Common Stock"), of Compositech Ltd., a Delaware
corporation (the "Company"), at the Initial Exercise Price, subject to
adjustment in certain events (the "Exercise Price"), of $1.20 per Share upon
surrender of this 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 Warrant Agreement dated as of March 16, 1999 between the Company and
Sovereign (the "Warrant Agreement"), the terms and conditions of which are
expressly incorporated herein. Payment of the Exercise Price may be made in
cash, or by certified or official bank check in New York Clearing House funds
payable to the order of the Company, or any combination of cash or check.

     No Warrant may be exercised after 5:00 P.M., Eastern Standard Time, on the
Expiration Date, at which time all Warrants evidenced hereby, unless exercised
prior thereto, shall thereafter be void.

     The Warrants evidenced by this Warrant Certificate are part of a duly
authorized issue of 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 in 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 Warrants.

     The Warrant Agreement provides that upon the occurrence of certain events,
the Exercise Price 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 Warrants; 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.



                                       -1-
<PAGE>


     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 Warrants shall be issued to the transferees) 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 therewith.

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

     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.


                          [Signature On Following Page]



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<PAGE>


                             COMPANY SIGNATURE PAGE
                                       TO
                          SOVEREIGN WARRANT CERTIFICATE


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

     Dated: October 4, 1999

                                 COMPOSITECH LTD.


                                 By:
                                     -------------------------------------------
                                     Samuel S. Gross, Chief Financial Officer

ATTEST:

By:                                                      [Corporate Seal]
   -----------------------------
    Assistant Secretary








                                      -3-
<PAGE>


                         [FORM OF ELECTION TO PURCHASE]


     The undersigned hereby irrevocably elects to exercise the right,
represented by this Warrant Certificate, to purchase ____________ Shares and
herewith tenders in payment for such Shares cash or a certified or official bank
check payable in New York Clearing House Funds to the order of
_____________________ in the amount of $_______________ all in accordance with
the terms hereof. The undersigned requests that a certificate for such Shares be
registered in the name of whose address is_______________________________ and
that such Certificate be delivered to ______________ whose address is
____________________________.


Dated: ________________               Signature: _______________________________


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




___________________________________

___________________________________

(Insert Social Security or Other
Identifying Number of Holder)




                                      -4-
<PAGE>

                              [FORM OF ASSIGNMENT]


             (To be executed by the registered holder if such holder
                 desires to transfer the Warrant Certificate.)

     FOR VALUE RECEIVED _______________________________ hereby sells, assigns
and transfers unto

________________________________________________________________________________
(Please print name and address 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.)




___________________________________

___________________________________

(Insert Social Security or Other
Identifying Number of Holder)


                                      -5-