Silicone CG is red oxide in color.
Silicone Commercial Grade - Rubber Sheets & Rubber Rolls - 1/4" Thick x 36" Width x 48" Length Silicone CG has a working temperature of up to 450 Fahrenheit (500 F Intermittent). Commercial Grade Silicone sheeting is used in applications where physical properties of the silicone are not critical but extreme temperature resistance is necessary.. Commercial Grade Silicone has excellent resistance to fungus, acetic acid, ammonia gas (hot and cold), corn oil, fish oil.