percent solvent based on the weight of the other materials in preparing the paste the elastomer is first mixed with sufficient solvent to dissolve the rubber typically about 10 to about 25 percent of the mixture will comprise rubber the inorganic fiber is then added and mixed until a substantially uniform mixture is obtained the resin together with additional fillers are added and mixing is continued after a substantially uniform mixture is obtained other materials such as chopped fiberglass may be incorporated into the mixture the chopped fiberglass is especially suitable as a reinforcing material the ratio of the amount of rubber to silicone in the binder and the amount of total fiber to total binder in the mixture may vary substantially depending on the method to be used to form the paste generally optimum results will be obtained by using from about 0 5 to about 8 parts rubber to one part silicone and from 1 25 to about 2 50 total fiber to one part total binder upon completion of mixing the mixture will be substantially smooth and paste like and thereupon may be formed into any desired shape such as sheets strips tubes cylinders or more complex forms an important advantage of the present invention is that the uncured material is formable by conventional methods such as sheeting extrusion molding and the like into virtually any size shape or pattern and may be easily cut curved or folded depending upon the final desired form of the product the shaped material is then cured by the application of heat preferably the temperature of the material is gradually increased over a period of time until the solvent is evaporated and the rubber and resin are cured the time.