CRL 1" Closed Cell Backer Rod - 550 Foot Roll

The CRL Closed Cell Backer Rod is a top choice for efficient sealant application, offering easy control over sealant thickness without requiring an additional bond breaker.
Its non-bonding surface ensures compatibility with all cold-applied sealants, enhancing the performance and flexibility of your sealant work.
Available in diameters ranging from 1/4" to 2" (7 to 50mm), this polyethylene foam rod is designed for optimal joint design and prevents excessive sealant usage.
Ideal for expansion/control joints and various construction projects, the CRL Closed Cell Backer Rod resists water absorption and maintains its integrity under temperatures from -45°F to 160°F (-43°C to 71°C).
Proper size selection is crucial for effective use, with the backer rod recommended to be 25-50% wider than the joint for a secure fit.
Always store in a well-ventilated area, away from direct sunlight and heat sources.