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Chem Link HBR-Rod is a round, flexible, continuous length of extruded, closed-cell polyethylene foam backer rod for use as a backing material for elastomeric and other cold-applied sealants.
See "related products" below for HBR-Rod in other lengths.
Just prior to installing HBR, clean all joints per the sealant manufacturer's recommendations. Thoroughly remove any concrete form-release agents, curing compound residue, laitance, or any foreign materials. To ensure a good sealant bond, joints must be clean and dry when the new sealant is installed. Air compressors used for this purpose must be equipped with traps for removal of oil and moisture. Install HBR at the depth recommended by the sealant manufacturer with a blunt tool.
