Silicone - Premium Grade Gray - 60A - Rubber Sheet & Rubber Roll - 1/32" Thick x 36" Width x 24" Length Silicone rubber sheeting is sold in 3 thicknesses (1/32", 1/16", 1/8") Silicone sheets and rolls make the ultimate high temperature gaskets Colored silicone sheets with minimum tensile strength of 870 PSI (6 MPA) Silicone Premium Grade (PG) is used where higher physical properties are required. USA Made high temperature silicone available in a variety of colors: red, gray, and black