Phosphoric Acid Garage Floor

Apply the diluted phosphoric acid to the concrete with a nylon scrub brush. Mix 1 part acid to 3 parts water for sufficient strength. This ensures a more even application.

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This is usually considered a concrete preparation step prior to the application of an epoxy floor paint garage epoxy.

Phosphoric acid garage floor.

Professionals recommend testing the strength needed on one area before applying it on the entire garage floor. Do not allow the phosphoric acid to dry on the concrete. Use a sprayer or watering can to distribute the acid. Start on an area of concrete that isn t too noticeable.

Phosphoric acid can emulsify oils something that hydrochloric acid is not capable of doing. Both types of acids can remove rust from concrete flooring. 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. Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water.

Rather than pour all of the acid onto one spot of the floor which can leave some of the acid spent by the time it reaches the far corners of the concrete use a plastic sprayer or watering can. For many years it was a standard method of concrete preparation used by nearly all industrial commercial and institutional floor coating installers depending on the floor size and system to be installed. Allow the solution to remain on the surface for about five minutes as you continue scrubbing with the brush.