CRL 3/4" Closed Cell Backer Rod - 100' Roll Finish:Gray The sealant cures to a

The sealant cures to a flexible rubber when exposed to moisture present in the air

Contains a Fungicide for Mildew Resistance

Insulation

OSI: VP-275

It solves difficult assembly and positioning problems

CRL 3/4" Closed Cell Backer Rod - 100' Roll Finish:Gray The sealant cures to 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