SV 628 is quickly vulcanized acetic silicone sealant at room temperature. It cures fast to form a permanently flexible, waterproof and weather resistant silicone rubber. The characteristics of non-flowing and good aging resistance, the sealant is resistant to oil, water, dilute acid, and dilute alkali, high and low temperature resistance, good sealing, shock resistance and impact resistance. It can widely used for glass window and doors.