CRL Black 7/8" Open Cell Backer Rod - 900 Foot Roll Putty & Accessories primer should be applied to

primer should be applied to both surfaces

Not recommended for use in the following applications: Glazing or edge sealing of insulating glass

It is also used in vehicles

10 Year Limited Warranty

and building rehabilitation projects

CRL Black 7/8" Open Cell Backer Rod - 900 Foot Roll Putty & Accessories primer should be applied toOpen 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