CRL 5/8" Closed Cell Backer Rod - 100' Roll Lifter Replacement Parts & Accessories and outlasts ordinary putties

and outlasts ordinary putties

and offers excellent performance in moving joints

submerged joints (swimming pools and aquariums)

interior or exterior structural sealing below the waterline in marine applications

CRL 5/8" Closed Cell Backer Rod - 100' Roll Lifter Replacement Parts & Accessories and outlasts ordinary puttiesAllows 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