CRL B0CBR118 Black 1-1/8" Open Cell Backer Rod, 350 ft Roll

C.R. Laurence B0CBR118 Black 1-1/8" Open Cell Backer Rod - 350 Foot Roll offers a reliable solution for controlling sealant depth and preventing bond issues in various construction applications. This open-cell, non-gassing polyurethane foam is designed to compress easily, ensuring compatibility with all cold-applied sealants. With a temperature range of -65°F to 400°F (-54°C to 204°C), it remains effective even under extreme conditions. The soft and flexible nature of this backer rod accommodates dynamic joint movement, making it ideal for areas where joint damage may occur. Its black color helps to seamlessly blend into joint applications, enhancing the overall aesthetic. With a diameter of 1-1/8 inches and a generous length of 350 feet, this backer rod is packaged in an easy-to-unroll spool for convenience. Proper installation is crucial; the backer rod should be oversized by 50% to secure a tight fit within the joint and to function as a bond breaker. This ensures a well-shaped sealant bead, prolonging the service life of your sealant. Note that this product is not suitable for horizontal traffic joints and should be used exclusively for vertical wall joints. For optimal results, always refer to the sealant manufacturer’s recommendations during installation.

1-1/8" Open Cell Backer Rod - 350 Foot Roll

• Controls Sealant Depth and Functions as an Effective Bond Breaker
• Compatible with All Cold-Applied and Hot-Pour Sealants
• Soft Material Allows for Easy Compression During Installation

CRL Open Cell Backer Rod is a soft, round, and highly compressible polyurethane foam designed to back cold-applied sealant joints, or hot-pour sealants. Its open-cell structure allows it to flex and adapt to irregular or damaged joints without being affected by dynamic joint movement or stress.

CRL Open Cell Backer Rod is available for purchase in the following diameters – 5/8" to 2" (16 to 51 mm).

• New Joints: Clean thoroughly to remove form-release agents, curing compounds, or debris. Ensure the joint is clean and dry before applying sealant.
• Repairing Old Joints: Remove all old sealant or filler. Use wire brushing and air blasting for effective cleaning. If using an air compressor, ensure it has moisture and oil traps.

1. Prepare the surface by following the Joint Preparation directions.
2. Measure and Select: Choose the correct backer rod size based on the joint width.
3. Set Depth: Install the backer rod at the depth recommended by the sealant manufacturer, ensuring the sealant forms an "hourglass" shape.
4. Use the Right Tools: Install with a blunt tool or roller. The Cat. No. T607CU605 or Cat. No. SBRR for smooth installation.

Resources

• Safety Data Sheets B0CBR118.pdf
• Specifications 0cbr.pdf