CRL 1" Closed Cell Backer Rod - 550' Case Finish:Gray and dozens of other uses

and dozens of other uses in the shop

Tested Systems Up to Four Hours

Conforms to ASTM C920 Type S

In general

CRL 1" Closed Cell Backer Rod - 550' Case Finish:Gray and dozens of other usesAllows 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