Work Zone 100% Silicone Sealant is a multi purpose single component, RTV silicone rubber sealant designed to seal nonporous surfaces on interior and exterior applications. It is long lasting, and forms a weatherproof & watertight seal which remains permanently flexible, and will not shrink, crack, crumble or dry out. The sealant has good resistance to weathering, vibration, moisture, ozone and extreme temperatures. It may be applied in subzero weather without loss of extrusion or physical property characteristics and is effective from -62°C to 204°C. It is easy to apply, finger smoothable, and non-flammable.