CRL Black 7/8" Open Cell Backer Rod - 100 Foot Roll Finish:Black *Do not use on plastic

*Do not use on plastic window panes

Virtually Eliminates Bowing of Window Frames

GE®: 2800 SilGlaze II Silicone Contractors-N1800

and AAMA 808

CRL Black 7/8" Open Cell Backer Rod - 100 Foot Roll Finish:Black *Do not use on plasticOpen Cell, No Skin, Non Gassing Rod is Compatible With All Cold Applied Sealants Controls Depth of Sealant and Acts as a Bond Breaker Soft, Compresses Easily CRL Open Cell Backer Rod is a soft, round, and easily compressible open cell polyurethane foam. Open Cell Backer Rod is not adversely affected by dynamic joint movement, and its inherent flexibility applies itself to joint variations very easily. It is ideal for use in situations where joint