CRL 1-1/4" Closed Cell Backer Rod - 400' Case Putty Knives & Caulking Spatulas CRL RTV408 Silicone is a

CRL RTV408 Silicone is a neutral cure

After application

and Glass to U-Channel

Replaces Worn Leathers in Bulk Load Guns

10 Year Limited Warranty

CRL 1-1/4" Closed Cell Backer Rod - 400' Case Putty Knives & Caulking Spatulas CRL RTV408 Silicone is aAllows 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