CRL 1-1/4" Closed Cell Backer Rod - 100' Roll Putty & Accessories and nylon with superior strength

and nylon with superior strength holding power up to 3

the sealant reacts with atmospheric moisture to produce a low-modulus

Sof® Rod will not out-gas if ruptured

and ASTM G155

Unlike wet glazing with silicone sealants

CRL 1-1/4" Closed Cell Backer Rod - 100' Roll Putty & Accessories and nylon with superior strengthAllows 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