DR-621 Weather-proof Silicone Sealant is a one-component,neutral curing silicone sealant suitable for general sealing,general glazing,waterproofing applications.
● One part,neutral cure,odorless;
● Excellent watertight performance;
● Easy application;
● Stable long service life;
● Good weatherability and resistance to UV radiation, heat and humidity ozone.
● Excellent resistance to temperature extremes,unaffected performance from -50℃ to +150℃.
DR621 weatherproof silicone sealant is designed for perimeter seal applications of windows and doors.
DR620 Neutral weather-proof silicone sealant should not be applied:
● For structural glazing;
● For weather seal for curtain walls;
● To underground joints;
● To joints with high movements;
● To the materials that bleed oil, plasticizer or solvent such as impregnated wood, or unvulcanized resin;
● In totally confined space ad sealant requires atmospheric moisture for cure;