Concrete Acid Wash

4 scrub with a broom.

Concrete acid wash. They work by penetrating the surface and reacting chemically with the hydrated lime calcium hydroxide in the concrete. A quick demo on acid washing concrete. 2 mix hydrochloric acid with water. Acid washing prepares a patio for painting and makes it less slick.

In order to achieve the perfect finished project you must first clean the floor which you plan to acid wash. However acid wash is not as ordinary as just a way to clean any concrete floor especially a part of home interior. 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. Exposed aggregate that was recently poured and not been sealed is the type of concrete surface that is most commonly acid washed.

Remove everything from the surface and sweep away the dirt. From its name perhaps you think acid wash as a method of cleaning for concrete floor. The acid in the stain lightly etches the surface allowing the metallic salts to penetrate more easily. Follow these easy steps to acid wash your concrete or garage floor.

In the simplest explanation that is correct. Acid washing etches the upper layer of cement exposing more of the sand in the concrete mixture and making the surface feel rougher. 3 put on as video shows. You can also use acid in weaker concentrations to remove white mineral deposits efflorescence and heavy grime.

A concrete patio may have a smooth shiny surface that makes it slick when wet or that prevents paint or sealer from adhering. Acid washing also known as acid etching prepares a concrete surface to accept a sealer. Most acid stains are a mixture of water hydrochloric acid and acid soluble metallic salts. Acid washing is dangerous for people plants and metal objects especially indoors where fumes can concentrate.

Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water. Hose the surface in order to remove any tough particles. Older concrete 6 months or more should be pressure washed first to remove moss and grim that the acid can t remove. The type solution used in acid washing which is also known as acid etching belongs to the category of acid.

10 parts water to 1 part acid.