Do I Need To Acid Wash New Concrete Before Sealing

It is highly recommended that if you are preparing your concrete floor for a coating sealing flooring of any type or polishing that you do not use acid to etch the concrete.

Do i need to acid wash new concrete before sealing.

Because the profiler a muriatic acid in a gel form lays on the surface of the concrete without absorbing into the cement. For acid etching a muriatic hydrochloric acid solution is spread on the concrete and brushed across the surface with a floor machine equipped with nylogrit brush used for etching and then is rinsed away. In order to properly seal your concrete then you must clean the surface of the substrate before applying a concrete sealer of any variety. The concrete surface preparation is very important.

If done properly the etched concrete will feel like 80 to 100 grit sandpaper. The easiest and most effective way to clean the concrete will vary depending on the condition of your concrete and whether it has been treated with chemical stains. Muratic acid is not expensive and adding it to water is a 5 to 10 solution will make a better bonding surface. Let the surface of the concrete completely dry before installing tile.

To clean concrete before sealing the surface needs to be free of any contaminants and be porous to allow the sealer to key into the concrete. The longevity of a coating partly depends on how well it adheres to the surface of the concrete. Why acid etching is no longer recommended as a concrete prep method. By sophia daukus on february 7th 2018 in environment regs installation technical.

Acid washing is dangerous for people plants and metal objects especially indoors where fumes can concentrate. Acid washing also known as acid etching prepares a concrete surface to accept a sealer. Prep your concrete before you seal. You will need to use an acid based solution like muriatic acid to rough up the surface if the top of the concrete is still smooth.

Driveways pavement concrete that has been weathered for years may already have the shiny top layer removed naturally and all it needs is a good clean with a water jet to prepare it. The surface of the concrete should have been neutralized after acid staining with a solution of 1 2 pound baking soda mixed with 5 gallons of water. With new products hitting the market all the time we found the profiler by surface gel tek an outstanding method for cleaning and re sealing exposed aggregate.