<SUBMISSION>
<ACCESSION-NUMBER>0000950135-00-003085
<TYPE>SC 14D9/A
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<FILING-DATE>20000601
<SUBJECT-COMPANY>
<COMPANY-DATA>
<CONFORMED-NAME>BRUNSWICK TECHNOLOGIES INC
<CIK>0000826075
<ASSIGNED-SIC>2221
<IRS-NUMBER>010402052
<STATE-OF-INCORPORATION>ME
<FISCAL-YEAR-END>1231
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<ACT>34
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<FILM-NUMBER>647883
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>43 BIBBER PKWY
<CITY>BRUNSWICK
<STATE>ME
<ZIP>04011
<PHONE>2077297792
</BUSINESS-ADDRESS>
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<STREET1>43 BIBBER PARKWAY
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<STATE>ME
<ZIP>04011
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<TYPE>SC 14D9/A
<SEQUENCE>1
<FILENAME>0001.txt
<DESCRIPTION>BRUNSWICK TECHNOLOGIES, INC.
<TEXT>

<PAGE>   1

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
                                 SCHEDULE 14D-9
                                 (RULE 14D-101)
                               AMENDMENT NO. 7 TO

               SOLICITATION/RECOMMENDATION STATEMENT PURSUANT TO
            SECTION 14(D)(4) OF THE SECURITIES EXCHANGE ACT OF 1934

                            ------------------------

                          BRUNSWICK TECHNOLOGIES, INC.
                           (NAME OF SUBJECT COMPANY)

                          BRUNSWICK TECHNOLOGIES, INC.
                      (NAME OF PERSON(S) FILING STATEMENT)

                   COMMON STOCK, PAR VALUE $0.0001 PER SHARE
                         (TITLE OF CLASS OF SECURITIES)

                                  117394 10 6
                         (CUSIP NUMBER OF COMMON STOCK)

                               MARTIN S. GRIMNES
                            CHIEF EXECUTIVE OFFICER
                          BRUNSWICK TECHNOLOGIES, INC.
                               43 BIBBER PARKWAY
                              BRUNSWICK, ME 04011
                                 (207) 729-7792
      (NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON AUTHORIZED TO RECEIVE
    NOTICES AND COMMUNICATIONS ON BEHALF OF THE PERSON(S) FILING STATEMENT)

                            ------------------------

                                WITH A COPY TO:

                          Robert A. Trevisani, Esquire
                               Gadsby Hannah LLP
                              225 Franklin Street
                                Boston, MA 02110
                                 (617) 345-7000

[ ] Check the box if the filing relates solely to preliminary communications
made before the commencement of a tender offer.

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
<PAGE>   2
     Brunswick Technologies, Inc., a Maine corporation (the "Company" hereby
amends and supplements its Solicitation/Recommendation Statement on Schedule
14D-9 dated May 3, 2000 (as amended by Amendments No. 1 through 6, the "Schedule
14D-9") relating to the tender offer by VA Acquisition Corporation, (the
"Purchaser") and a wholly-owned subsidiary of CertainTeed Corporation, a
Delaware Corporation (the "Parent") both of which are indirect wholly owned
subsidiaries of Compagnie de Saint-Gobain, a French corporation, to purchase
outstanding shares of common stock, par value $.0001 per share (the "Shares"),
of the Company at a price of $8.00 per share, net to the sellers in cash, upon
the terms and subject to the conditions set forth in the Offer to Purchase,
dated April 20, 2000 and in the related Letter of Transmittal as disclosed in
the Tender Offer Statement on Schedule 14D-1 dated April 20, 2000, as amended by
Amendments No. 1 through 16 to Schedule 14D-1. All capitalized terms shall have
the meanings assigned to them in the Schedule 14D-9, as amended to date, unless
otherwise indicated herein.

     Item 8 is hereby amended by the addition of the following:

     On June 1, 2000, the Company sent a letter to stockholders relative to the
tender offer and special meeting of stockholders of the Company.

     A copy of the letter is filed as Exhibit 16 to the Schedule 14D-9 and is
incorporated herein by reference.

ITEM 9.    MATERIAL TO BE FILED AS EXHIBITS

     Item 9 is hereby amended by addition of the following:

     Exhibit 16    Letter of Brunswick Technologies, Inc. dated June 1, 2000.

                                      2
<PAGE>   3

                                   SIGNATURE

     After due inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

                                          BRUNSWICK TECHNOLOGIES, INC.

                                          By: /s/ MARTIN S. GRIMNES
                                            ------------------------------------
                                            Name: Martin S. Grimnes
                                            Title:  Chief Executive Officer

Dated: June 1, 2000

                                        3
<PAGE>   4


                                EXHIBIT INDEX


Exhibit  1.  Part I, Item 1: "Business -- Supply," of the Company's
             Annual Report on Form 10-K for the year ended December 31,
             1999 (previously filed with the Commission on March 30, 2000
             and hereby incorporated by reference).
Exhibit  2.  Definitive Proxy Statement of the Company dated April 17,
             2000 (previously filed with the Commission on April 17, 2000
             and hereby incorporated by reference), as supplemented by
             Definitive Additional Materials dated April 25, 2000
             (previously filed with the Commission on April 25, 2000 and
             hereby incorporated by reference) and as supplemented by
             Definitive Additional Materials dated April 28, 2000
             (previously filed with the Commission on April 28, 2000 and
             hereby incorporated by reference).
*Exhibit  3. Form of Employment Agreement with certain executive officers
             of the Company.
*Exhibit  4. Complaint filed by the Company on April 26, 2000.
*Exhibit  5. Letter to Stockholders, dated May 3, 2000.
*Exhibit  6. Press Release issued by the Company on May 3, 2000.
*Exhibit  7. Opinion of McDonald Investments dated May 3, 2000 (contained
             as Annex A to this Schedule 14D-9 and hereby incorporated by
             reference).

*Exhibit  8. Letter of the Company to Saint-Gobain dated April 17, 2000.

*Exhibit  9. Press Release, dated May 5, 2000 issued by Brunswick
             Technologies, Inc.

*Exhibit 10. Letter of Brunswick Technologies, Inc., dated May 5, 2000.

*Exhibit 11. Press Release of Brunswick Technologies, Inc., dated May 8, 2000.

*Exhibit 12. Letter of Brunswick Technologies, dated May 10, 2000 published
             in a number of Maine newspapers.

*Exhibit 13. Press Release of Brunswick Technologies, dated May 12, 2000.

*Exhibit 14. Letter of Brunswick Technologies, Inc. dated May 19, 2000.

*Exhibit 15. Complaint filed by Brunswick Technologies, Inc. dated May 23, 2000.

 Exhibit 16. Letter of Brunswick Technologies, Inc. dated June 1, 2000.

----------

* Previously filed.
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.16
<SEQUENCE>2
<FILENAME>0002.txt
<DESCRIPTION>LETTER OF BRUNSWICK DATED 1 JUNE 2000
<TEXT>

<PAGE>   1
[GRAPHIC BTI LOGO]                                             43 Bibber Parkway
REINFORCED THROUGH                                        Brunswick, Maine 04011
INNOVATION

                                                 June 1, 2000

Dear Fellow Shareholder:

                             CHECK OUT SAINT-GOBAIN
                           YOU WON'T LIKE WHAT YOU SEE
<TABLE>
<S>                                                                              <C>

-------------------------------------------------------------------------------- ------------
INADEQUATE OFFER

Your Board of Directors, with the assistance of independent legal and financial
advisors, is convinced that Saint-Gobain's $8.00 offer is inadequate and does
not reflect the true value of BTI.
                                                                                      [X]
Your Board also believes that the Saint-Gobain offer was carefully timed to take
advantage of the low price of our stock and to deprive shareholders of the
opportunity to realize full and appropriate value for their shares.

-------------------------------------------------------------------------------- ------------
INHERENT CONFLICT OF INTEREST

Saint-Gobain is asking shareholders to replace BTI's newly elected board with
nominees who are ALL EMPLOYEES OF COMPAGNIE DE SAINT-GOBAIN OR ITS SUBSIDIARIES.
                                                                                      [X]
We believe that this creates an inherent conflict of interest for Saint-Gobain's
nominees.

How can they impartially represent the interests of you and other BTI
shareholders when they work for the company that is trying to buy BTI?

-------------------------------------------------------------------------------- ------------
LACK OF SHAREHOLDER SUPPORT

Saint-Gobain has given the impression that BTI's shareholders support their
efforts - nothing could be further from the truth.

At the Annual Meeting on May 16, only SEVEN-TENTHS OF ONE PERCENT of the
outstanding shares voted on Vetrotex's proxy card (excluding shares voted by
Vetrotex, Saint-Gobain's subsidiary).
                                                                                      [X]
Shareholders also have not supported Saint-Gobain's tender offer. On May 16,
Saint-Gobain disclosed that LESS THAN TWO-TENTHS OF ONE PERCENT of BTI's
outstanding shares had accepted Saint-Gobain's tender offer!

We are encouraged that our shareholders have seen through Saint-Gobain's tactics
and not supported Saint-Gobain's tender offer or proxy solicitation.

WE URGE SHAREHOLDERS TO CONTINUE TO STAND STRONG AND REJECT SAINT-GOBAIN.
-------------------------------------------------------------------------------- ------------
</TABLE>


<PAGE>   2

--------------------------------------------------------------------------------
                     AS A SHAREHOLDER, WHAT SHOULD YOU DO?
--------------------------------------------------------------------------------

1)  REJECT SAINT-GOBAIN - THROW AWAY THE GREEN PROXY CARD

    o WE URGE YOU TO REJECT SAINT-GOBAIN BY THROWING AWAY ANY GREEN PROXY CARD
      SENT TO YOU.

    o Do not support Saint-Gobain at the special meeting.

    o Do not tender your shares into Saint-Gobain's inadequate offer.

2)  SUPPORT BTI - VOTE THE WHITE PROXY CARD NOW

    o WE URGE YOU TO SUPPORT BTI BY VOTING THE WHITE PROXY CARD.

    o Sign and date the enclosed WHITE proxy card.

    o Vote AGAINST proposal 1 and 2 and WITHHOLD on proposal 3.

    o Mail your proxy in the envelope provided.

--------------------------------------------------------------------------------

We appreciate your continued support.


                                    Sincerely,


                                    /s/ Martin S. Grimnes
                                    ------------------------------------
                                    Martin S. Grimnes
                                    Chairman and Chief Executive Officer













             IF YOU HAVE ANY QUESTIONS ON HOW TO VOTE YOUR SHARES,
                        PLEASE CALL OUR PROXY SOLICITOR:

                         MORROW & CO. AT (800) 662-5200

</TEXT>
</DOCUMENT>
</SUBMISSION>
