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                                                                      EXHIBIT 11


May 8, 2000

BRUNSWICK TECHNOLOGIES SENDS LETTER TO CERTAINTEED CORPORATION



BRUNSWICK, ME, May 8, 2000 - Brunswick Technologies, Inc. (Nasdaq: BTIC)
("BTI"), a leading manufacturer and innovative developer of composite
reinforcements, today sent the following letter to George B. Amoss, Vice
President at CertainTeed Corporation, a wholly-owned subsidiary of
Compagnie de Saint-Gobain, in response to a letter received by BTI's Board
of Directors:

May 8, 2000

Dear George,

We are, quite frankly, perplexed by your company's unsigned, open letter
delivered today to the BTI Board of Directors and issued in the form of a
press release. You are well aware that you have had an open invitation to
come in and meet with BTI's Board of Directors since May 3, when the BTI
Board made it clear that your unsolicited offer to acquire BTI was
inadequate and that it would explore all options to enhance shareholder
value. That effort has included the establishment of a committee of
independent directors to oversee the process and the retention of an
outside financial advisor, McDonald Investments.

If you are indeed serious about the commitment you claim to have to the
best interests of our company, our employees and our communities, we would
expect you to accept our invitation to meet with us and demonstrate that
commitment in concrete terms, as opposed to making empty promises by press
releases.

In regards to the specifics of today's letter, we are pleased that you
claim to be committed to growing BTI's operations and we would like to
review the specifics of your plan, both with respect to our Brunswick,
Maine facility and our other operations in the U.S. and overseas. We are
encouraged by your suggestion that you will honor all existing customer and
raw materials supply agreements; however, you can understand why we would
have doubts considering your affiliate, Vetrotex, raised raw material
prices and cut our supply at the end of 1999. And, while we appreciate your
suggestion that you know the value of our employees, we do not then
understand why you are trying so desperately to derail an incentive plan
designed to benefit all BTI employees. Your opposition to this plan rings
especially hollow when you consider that David Sharpe, a Vetrotex senior
executive, who until recently served as a member of BTI's Board and
Chairman of the Compensation Committee, approved the original plan in 1997
and has approved all options granted within the last two years.

With or without your willing participation, we will continue to
aggressively explore strategic alternatives to enhance value for all BTI
shareholders in a timely manner. If you wish to participate in this orderly
and fair process, we suggest you contact us immediately.

Sincerely,

Martin S. Grimnes

Examples of products manufactured with BTI engineered reinforcements
include: ballistic armor, boats, snowboards, railcars, truck panels, wind
blades, airframe structures, automotive parts, marine pilings, bridges, and

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offshore oil and gas production equipment. BTI has manufacturing facilities
in the Maine, Texas and the UK.

Safe Harbor Statement under the Private Securities Litigation Reform Act of
1995 Matters discussed in this news release, including any discussion of or
impact, expressed or implied, on the Company's anticipated revenue growth,
operating results and future earnings per share contain forward-looking
statements (identified by the words "expect", "estimate", "project",
"plans", "believe", and similar expressions) that involve known and unknown
risks and uncertainties. For these statements the company claims the
protection of the safe harbor of the private Securities Litigation Reform
Act of 1995. The company's results may differ significantly from the
results indicated by such forward-looking statements. The Company's future
results are dependent upon general economic conditions, the availability of
supplies of fiberglass, the ability to expand new and existing markets,
competition from competing product lines from both fiberglass and
non-fiberglass suppliers, the ability to manage growth in inventory, the
stability of its customers' capital spending plans and the ability of the
company to obtain necessary capital from time to time. These and other
risks are detailed from time to time in the Company's SEC reports,
including Form 10K for the year ended December 31, 1999.


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