CRL 3/8" Closed Cell Backer Rod - 100' Roll Finish:Gray 20-year performance warranty available

20-year performance warranty available

Stops leaks in doors and windows

1-1/2" (38 mm) Long Stainless Steel Needle

5 AMP) power drain

Primerless Adhesion to Most Substrates

CRL 3/8" Closed Cell Backer Rod - 100' Roll Finish:Gray 20-year performance warranty availableAllows Easy Control of Sealant Application Thickness Preferred for Exterior Installations Where a More Positive Seal is Required 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