How To Remove Concrete Sealer With Vinegar. Pour a small amount of xylene on an area that is still coated by the previous concrete sealer. Turn off all gas and heat sources.
Let it sit until the sealer is softened. Use a spray can to spray distilled white vinegar along your grout lines until your grout is saturated. This will affect marble, travertine, concrete and concrete terrazzo surfaces.
What is the best way to apply concrete sealer?
Both efflorescence and calcium deposits can be cleaned using a 50/50 mix of white vinegar and water. Generally, chemical stripping will not affect the ph of concrete. Turn off all gas and heat sources. If the concrete is not tacky or sticky the concrete was sealed with a water based sealer.