Chemfab Corp Watch

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Chemfab Corporation Gamco Investors, Inc. 8/09/00 40,000 18.0810 8/09/00 8,000 18.0810 8/08/00 20,000 18.0625 8/07/00 4,200 18.0625 8/07/00 40,000 18.0625 (1) Unless Otherwise Indicated, All Transactions Were Effected on the NYSE. (2) Price Excludes Commission

from SC 13D/A 1 page Schedule II Information With Respect to Transactions Effected During the Past Sixty Days or Since the Most Recent Filing on Schedule 13d (1) Shares Purchased Average Date Sold(-) Price(2) Common Stock-Chemfab Corporation Gamco Investors, Inc. 8/09/00 40,000 18.0810 8/09/00 8,000 18.0810 8/08/00 20,000 18.0625 8/07/00 4,200 18.0625 8/07/00 40,000 18.0625 (1) Unless Otherwise Indicated, All Transactions Were Effected on the NYSE. (2) Price Excludes Commission

from SC 14D9 1 page Form of Letter to Stockholders of Chemfab Corp.