Reliable Adhesion: Butyl rubber sealant designed to bond effectively to a variety of clean surfaces, supporting dependable sealing performance while maintaining flexibility required for controlled joint movement
Butyl-Based Formulation: Butyl rubber sealant formulated with age-resistant polymers to provide reliable weathering performance across various temperature extremes
Adhesion and Flexibility: Delivers strong adhesion to most clean surfaces while accommodating up to 10% joint movement without compromising water-tight sealing
Exterior Application Use: Recommended for exterior applications on wood, masonry, glass, concrete, some plastics, and metal, especially in concealed areas such as sill pans, thresholds, screw heads, panels, siding, and gutters
UV and Temperature Resistance: Contains an ultraviolet-resistant agent and is designed for application temperatures from 40?F to 120?F, with service temperatures ranging from ?20?F to 200?F
Usage Limitations: Not recommended for horizontal surfaces subject to abrasion, window glazing applications, or joints requiring non-skinning, non-hardening sealants; solvent-based curing may produce mild odor during application
Exterior Weather Resistance: Formulated with age-resistant polymers to help maintain sealing performance across temperature variations, supporting consistent exterior use in changing environmental conditions
Flexible Joint Capability: Accommodates up to 10 percent joint movement without affecting water-tightness, making it suitable for applications requiring controlled flexibility and dimensional tolerance
Description
C.R. LAURENCE 777GRY CRL Gray 777 Butyl Rubber 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.. Part Numbers Variations: 777GRY
