Phosphoric Acid Garage Floor
Allow the solution to remain on the surface for about five minutes as you continue scrubbing with the brush.
Phosphoric acid garage floor. Acid etching as a surface preparation is the process of applying an acid solution to a concrete surface allowing the acid to react with and etch the concrete. Apply the diluted phosphoric acid to the concrete with a nylon scrub brush. This ensures a more even application. Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water.
Professionals recommend testing the strength needed on one area before applying it on the entire garage floor. This is usually considered a concrete preparation step prior to the application of an epoxy floor paint garage epoxy. Phosphoric acid can emulsify oils something that hydrochloric acid is not capable of doing. Do not allow the phosphoric acid to dry on the concrete.
Mix 1 part acid to 3 parts water for sufficient strength. Use a sprayer or watering can to distribute the acid. Start on an area of concrete that isn t too noticeable.