This product is available in West Virgina only!

Please contact us if you would like additional details and/or more information.

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HBR Backer Rod s a closed-cell, polyethylene foam backer rod joint filler that is used as a backing material for elastomeric and other cold-applied sealants. It helps the sealant assume the optimum shape to prolong service life and acts as a barrier to the flow of sealant through the joint.  It does not absorb water.