CRL 5/8" Open Cell Backer Rod - 100 Foot Roll - B0CBR58C

Product Overview The CRL Open Cell Backer Rod is a resilient and versatile product that is highly effective in various joint applications. It is made of open-cell polyurethane foam, making it excellent for accommodating joint variations and dynamic movements. This backer rod is especially suitable for areas with joint damage, as it eliminates potential sealant failures that can result from closed cell backer rod punctures. The product's black color enables it to blend seamlessly with certain joint applications, and it can be used in temperatures ranging from -65°F to 400°F (-54°C to 204°C). It is recommended to be used with high-performance sealants such as silicones and urethanes. Proper size selection of the CRL Open Cell Backer Rod is crucial, as it directly affects the depth of the sealant bead. It must be oversized (50%) to fit tightly into the joint and function as a bond breaker to prevent bottom-side adhesion of the sealant. Thorough cleaning is essential for new joints to ensu