Nov 12 , 2018
Clean the edges
Clean the old caulk from edges of the crack using a chemical cleaner or mineral spirits. If the caulking keeps peeling up from the cracks in your concrete patio, try this professional solution. Use a combination of backer rod (inexpensive at home centers) and caulk. First remove the caulk that’s in the gap. For latex caulk, pour caulk remover (such as Lift Off; about $6 at home centers and hardware stores) over the caulk, let it sit for two hours, then dig out the caulk with a stiff putty knife. For silicone or polyurethane caulk, use mineral spirits.