CRL 1/2" Closed Cell Backer Rod - 100' Roll Butyl Rubber Sealants and offers excellent performance in

and offers excellent performance in moving joints

and metal-to-metal joints

Water Clear Silicone is packaged in two sizes of heavy plastic cartridges that feature removable

Additionally

long-lasting

CRL 1/2" Closed Cell Backer Rod - 100' Roll Butyl Rubber Sealants and offers excellent performance inAllows Easy Control of Sealant Application Thickness Won't Adhere to Sealants; No Bond Breaker Needed Compatible with All Cold Applied Sealants CRL Closed Cell Backer Rod is a round, flexible, closed cell polyethylene foam with an exterior "skin" used as a backing and thickness control device for elastomeric and other cold applied sealants. The Backer Rod becomes an integral part of the joint into which it is installed, and therefore is available in a