Backer Rod, 1/4" Roll (3,200 feet)

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1/4" Roll (3,200 feet) Backer Rod is extruded closed-cell polyethylene rod that is used in cracks, checks and gaps before filling them with sealants such as Perma-Chink, Energy Sea l and Check Mate 2. Caulk joints should not be more than 3/8” thick and Backer Rod provides a way to fill a deep crevice or gap while maintaining the proper sealant thickness for maximum performance. Backer Rod should also be used in checks over 1/4” wide before applying Check Mate 2. Closed cell polyethylene Will not absorb water Heat and cold stable. Should be used to assure proper thickness of sealants including Perma-Chink, Energy Seal and Check Mate 2 Show more