CRL Gray 777 Butyl Rubber Sealant

CRL 777 Butyl Rubber is a high-performance sealant, expertly formulated with age-resistant polymers for outstanding weathering capabilities across various temperature conditions.
This butyl-based sealant ensures excellent adhesion to numerous clean surfaces, including wood, masonry, glass, concrete, and metal, making it ideal for exterior applications like under sill cans, thresholds, and around screw heads.
Engineered to withstand joint movement of ± 10% without compromising water-tightness, CRL 777 also features a special ultraviolet fighting agent for an extended service life.
With an application temperature range of 40° to 120°F (4° to 49°C) and a service range of -20° to 200°F (-29° to 93°C), this sealant is your go-to choice for reliable, long-lasting protection.