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Catalog Number: B0CBR58

  • Open Cell, No Skin, Non-Gassing Rod is Compatible with All Cold-Applied Sealants

  • Controls Depth of Sealant and Acts as a Bond Breaker

  • Soft, Black Color Rod Compresses Easily

  • CRL Open Cell Backer Rod is soft, round, and easily compressible open cell polyurethane foam. Open Cell Backer Rod is not adversely affected by dynamic joint movement, and its inherent flexibility applies itself to joint variations very easily. It is ideal for use in situations where joint damage has occurred. It eliminates potential sealant failures due to out gassing that occurs when the "skin" of closed cell backer rod is punctured. The black color helps to disguise the backer rod in certain joint applications. CRL Open Cell Backer Rod can be used in temperatures from -65° to 400°F (-54° to 204°C). It is highly recommended for use with high performance sealants such as silicones and urethanes. CRL Open Cell Backer Rod should be used only in vertical and horizontal wall joints. It is not suitable for horizontal traffic joint surfaces like pavement joints.

    CRL Black 5/8" x 1400' Open Cell Backer Rod


    Other Products/Finishes:

    B0CBR58 CRL Black 5/8" x 1400' Open Cell Backer Rod
    B0CBR78 CRL Black 7/8" Open Cell Backer Rod - 900 Foot Roll
    B0CBR118 CRL Black 1-1/8" Open Cell Backer Rod - 350 Foot Roll
    B0CBR112 CRL Black 1-1/2" Open Cell Backer Rod - 200 Foot Roll
    B0CBR2 CRL Black 2" Open Cell Backer Rod - 102'

    Catalog Number:B0CBR58
    Also Available in These Catalogs:
    USAL14 U.S. Aluminum Architectural Design Manual, PAGE 02C4
    CRL63R Architectural Railing Systems, PAGE 115R
    HR18 Architectural Railing Systems 2018, PAGE 125B
    USAL15 U.S. Aluminum Curtain Wall Catalog, PAGE 53P1
    CRL83R Door and Window Replacement, PAGE 865W
    CRL03 Sealants, Adhesives, and Fasteners, PAGE N187
    Rod Diameter:5/8" (16 mm)
    Case Length:1400' (426 m)
    Ship Via:Can Ship UPS
    Minimum Order:1 Case

    Proper size selection of CRL Open Cell Backer Rod is important as it controls the depth of the sealant bead. It must be oversized (50%) to fit tightly into the joint, and function as a bond breaker to prevent bottom-side adhesion of the sealant.

    New joints must be cleaned thoroughly, removing any concrete form-release agents, curing compound residue, or any other foreign materials. To ensure a good sealant bond, joints must be clean and dry when the sealant is installed. If old joints are being repaired, all old sealant or filler must be removed. Wire brushing and air blasting are very effective in removing old caulk residues. If an air compressor is used, it must be equipped with traps for the removal of oil and moisture.

    After measuring the joint size and choosing the applicable backer rod, install the backer rod at the depth recommended by the sealant manufacturer. The depth that the rod is inserted into the joint should allow the sealant to form a "hourglass" shape. This is the optimum shape factor for prolonging the service life of the sealant. The backer rod must be installed with a blunt tool or roller. The T607CU605 CRL Backer Rod Insert Tool Set, is designed specifically for the smooth installation of backer rod. Packaged on easy to unroll spools and shipped in boxes not bags.

    Not suitable for horizontal traffic joints. Use only in vertical wall joints. Do not use with hot applied sealants. Any questions regarding sealant compatibility should be confirmed with the sealant manufacturer.

    Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. ColorsColours can vary depending on your computer's video card and on how your monitor's colorcolour is adjusted.