This product, together with crosslinking agent and catalyst, can be cured at room temperature, and can maintain long-term elasticity in the temperature range of -60～220℃. It has excellent electrical properties and chemical stability, and is resistant to water, odor and weathering. This product is widely used in construction caulking, insulation, anti-vibration, moisture-proof, anti-corrosion of electronic components, molding and demolding of rubber and plastic products, as well as leather lubricants, release agents, etc. It is also the basic raw material of room temperature vulcanized silicone rubber; special Specifications can be used in fabric finishing and daily chemical industry.