CRL M66 Limestone Polyurethane Construction Sealant - M66L

CRL M66 is a one-part, moisture curing, gun grade modified polyurethane sealant. It does not require a primer on most common construction surfaces. CRL M66 is durable, flexible, and offers excellent performance in moving joints.

Basic Uses
CRL M66 Modified Polyurethane Construction Sealant is specially formulated to outperform traditional VOC solvent polyurethanes for sealing moving joints in concrete, masonry, metal, and other basic perimeter joint applications. It is ideal for all joints between framing (door and window) and the building structure in both storefront and curtain wall applications to secure a watertight installation. This advanced polymer formula offers excellent adhesion to fluoropolymer paint coatings for metal surfaces including KYNAR®, Duranar®, and Duranar® Sunstorm™ Coatings, as well as standard metal, aluminum, steel, galvanized steel, plastics, vinyl, glass, wood, concrete, brass, and other common building substrates.

One-Part Grainy Textured Finish Formula With Primerless Adhesion on Most Common Construction Surfaces Including Kynar Coated Metals | AAMA Approved | VOC Compliant - Only 9 g/L | UV Resistant/Non-Yellowing