CRL 3/4" Closed Cell Backer Rod - 1100 Foot Roll

The CRL Closed Cell Backer Rod is an essential product for managing sealant application thickness and ensuring optimal joint design.
Made from a flexible polyethylene foam, this backer rod has a non-bonding surface, eliminating the need for an additional bond breaker.
Its compatibility with all cold-applied sealants makes it versatile for various applications such as curtain walls, door and window frames, and parking decks.
Available in diameters ranging from 1/4" to 2", the backer rod is designed to prevent excessive sealant use and enhance sealant performance by reducing stress at adhesion points.
With temperature limits from -45°F to 160°F, it offers reliable performance in diverse conditions.
For proper installation, ensure the backer rod is oversized by 25-50% of the joint width for a snug fit.
Store in a well-ventilated area and avoid exposure to direct sunlight, heat sources, and open flames.