CRL 777W, Butyl Rubber, Bronze Butyl Rubber Industrial Sealant

CRL 777 Butyl Rubber is a unique, butyl-based sealant specially formulated using a blend of age-resistant polymers to give excellent weathering properties at various temperature extremes. CRL 777 offers excellent adhesion to most clean surfaces and will withstand joint movement of 10% without affecting its water-tightness. It also has a special ultraviolet fighting agent for exceptional service life. Recommended for exterior applications, CRL 777 Butyl Rubber Sealant features excellent adhesion to wood, masonry, glass, concrete, some plastics, and metal surfaces. Hidden areas, such as under sill cans, thresholds, and around screw heads are excellent applications. Other areas, such as between metal building panels, wall-mounted air conditioning units, under aluminum siding and gutters are all good applications for proven butyl sealants. Application temperature range is 40° to 120°F (4° to 49°C). Service temperature range is - 20° to 200°F (-29° to 93°C). Paint time is 24 hours.