CRL 1-1/4" Closed Cell Backer Rod - 100' Roll Putty & Accessories Technical DataMeets or exceeds the

Technical DataMeets or exceeds the requirements of ASTM C-834

Sika®: SikaSil® GP

TT-S-230C (COM-NBS) Class A

Excellent Primerless Adhesion to Metal

Unlike wet glazing with silicone sealants

CRL 1-1/4" Closed Cell Backer Rod - 100' Roll Putty & Accessories Technical DataMeets or exceeds theAllows 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