17 all polyimide film and breather cloth were removed from the carrier plate the top caul plate was removed from the material the material was then immediately removed from the carrier plate and placed between two caul plates equal to or greater than its length and width at ambient temperature thus facilitating a fast cool down period 18 the material was removed from the caul plates after 10 minutes 19 all used polyimide film tape breather cloth and sealant were discarded the resulting structure was a three layered bicomponent sheet material which had soft or conformable outer surfaces but yet rigid to flexure thus making it very useful as a gasketing material it is especially useful for cut gaskets having thin cross sectional areas since it is advantageous to the gasket user that the gasket not flex during gasket placement the present invention provides a gasketing material which is both conformable and rigid to flexure a five part construction of the present invention was produced using the method of manufacture as outlined in example i the following materials were stacked on a 1 6 mm thick by 406 mm wide by 660 mm long stainless steel autoclave caul plate in this order 0 2 mm thick cut to the area of 406 mm wide by 660 mm long using conventional shears gore tex gr u00ae sheet gasketing model gr0 02 available from w l gore and associates elkton md 0 25 mm thick.