Silicone gum is a kind of ointment that solidifies into a tough, rubber-like solid material upon contact with moisture in the air. Since it does not flow under its own weight, it can be used over the top or side wall joints without sag, collapse or flow away. It is mainly used for dry clean metal, glass, most of the wood without oil, silicone resin, sulfur silicone rubber, ceramics, natural and synthetic fiber, and a lot of paint plastic surface bonding. Good quality silicone rubber in the use of below zero degrees Celsius will not be extruded, physical properties change and other phenomena. Fully cured silicone adhesive can be used at temperatures up to 204℃ (400oF), but the effective time will be shortened when the temperature is up to 218℃ (428oF). Silicone adhesive has a variety of colors, commonly used colors are black, porcelain white, transparent, silver gray, gray, bronze six.