Polyurethane Crack Sealants in Concrete: Joint Prep, Backer Rod, and Tooling Tips
Introduction Polyurethane crack sealant is a flexible caulk used to fill and seal concrete joints and cracks to keep water and debris out while allowing movement. For a good DIY result, clean the joint, set an appropriate backer rod if the crack is deep or wide, and follow the sealant manufacturer’s instructions for temperature, priming, […]
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