CRL 1-1/4" Closed Cell Backer Rod - 400' Case Putty Knives & Caulking Spatulas Apply a continuous bead of

Apply a continuous bead of Moistop Sealant to the perimeter of the rough opening or to the backside of the mounting flange (D) of the window

After application

and cures in 12 to 24 hours

Oil-based paint may be applied after one week

CRL 1-1/4" Closed Cell Backer Rod - 400' Case Putty Knives & Caulking Spatulas Apply a continuous bead ofAllows 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