CRL White 777 Butyl Rubber Sealant
- Excellent Adhesion to a Variety of Clean Surfaces
- Superior Exterior Weathering Properties
- Easy to Apply and ToolSealant Estimator Chart
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.