CRL 1/4" Closed Cell Backer Rod - 6400' Case Finish:Gray Requires moisture to cure

Requires moisture to cure

Test application before use

20-year performance warranty available

It extrudes the size of your pinky finger and expands to the size of your thumb

CRL 1/4" Closed Cell Backer Rod - 6400' Case Finish:Gray Requires moisture to cureAllows 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