How to Fix Foundation Cracks Step 4 Level the caulked surface, then allow it to cure for 4 to 6 hours. Run a 1 1⁄2 in (3.8 cm) putty knife over the filled crack to smooth the surface and scrape away excess caulk. https://t.co/5DmeiCJ1IH

How to Fix Foundation Cracks

Step 4 Level the caulked surface, then allow it to cure for 4 to 6 hours. Run a 1 1⁄2 in (3.8 cm) putty knife over the filled crack to smooth the surface and scrape away excess caulk. pic.twitter.com/5DmeiCJ1IH

— Brother's Foundation Repair (@BrothersRepairs) September 29, 2019

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