CRL 1/2" Closed Cell Backer Rod - 100 Foot Roll

Discover the superior features of CRL Closed Cell Backer Rod, a round, flexible polyethylene foam designed to enhance sealant application.
Its non-bonding surface eliminates the need for an additional bond breaker and ensures compatibility with all cold-applied sealants.
Available in diameters from 1/4" to 2" (7 to 50mm), this backer rod prevents water absorption, promoting an ideal "hourglass" joint sealant shape.
Perfect for expansion/control joints, curtain walls, and more, this product withstands temperatures from -45°F to 160°F (-43°C to 71°C).
Ensure optimal performance by selecting the right size, storing properly, and following easy installation instructions.
Note that product shades may vary but do not affect performance.
Avoid using with hot-applied sealants above 160°F (71°C).
For precise shipping weight inquiries, please contact CRL Customer Service.