1″ Diameter Foam Backer Rod

Jones & Sons Verified independent store

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Backer rods are used as a foundation for sealants. These long, flexible, and cylindrical rods provide the right depth and shape for effective joint sealing. Proper depth and shape are crucial for the sealant to effectively fill the gaps and make the structure strong. Backer rods also help prevent three-sided adhesion, which reduces overall stress on the sealant and prolongs its lifespan. Show more