CRL 7/8" Open Cell Backer Rod - 100 Foot Roll - B0CBR78C

Product Overview The CRL Open Cell Backer Rod is a highly adaptable and resilient open-cell polyurethane foam designed for a variety of applications. This backer rod remains unaffected by joint movement and readily adjusts to variations. It is particularly well-suited for scenarios involving joint damage, effectively preventing sealant failures due to outgassing common with closed cell backer rods. Moreover, its discreet black color conceals the backer rod in specific joint applications. With a temperature range of -65° to 400°F (-54° to 204°C), it is the top choice for high-performance sealants like silicones and urethanes. While ideal for vertical and horizontal wall joints, it is not suitable for horizontal traffic joint surfaces such as pavement joints. Proper selection of the CRL Open Cell Backer Rod size is crucial, as it regulates the depth of the sealant bead and acts as a bond breaker. It should be oversized (50%) to fit snugly into the joint, ensuring effective prevention of