CRL 777 Butyl Rubber Sealant Expanding Foam Sealants & Dispensing Guns butyl-based sealant specially formulated using

butyl-based sealant specially formulated using a blend of age resistant polymers to give excellent weathering properties at various temperature extremes

Available in Eight Colors

The sealant should be applied after painting is completed

Meets AAMA 809

high modulus

CRL 777 Butyl Rubber Sealant Expanding Foam Sealants & Dispensing Guns butyl-based sealant specially formulated usingExcellent Adhesion to a Variety of Clean Surfaces Superior Exterior Weathering Properties Easy to Apply and Tool 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