Using Muriatic Acid To Stain Concrete

If the acid comes in contact with skin wash it away with large amounts of water.

Using muriatic acid to stain concrete.

With proper use it removes stains when other cleaners fail. Pool owners need muriatic acid to maintain the acidity of the pool water. Go over each sprayer coat with the paint roller for a smooth and uniform finish. Clean stains from toilets and kill mold.

Muriatic acid is a strong acid cleaner used on masonry surfaces to clean stains. Muriatic acid is commonly recommended to clean and remove rust stains from concrete. If you re just removing mineral deposits efflorescence use a much weaker mix 10 1 or 16 1 for muriatic acid. Muriatic acid should never be used indoors and has to be thoroughly neutralized before disposal.

Use an acid resistant airless paint sprayer to neatly and evenly apply the stain on the concrete slab. The muriatic acid etches the concrete allowing the color to seep into the concrete. Work in sections as needed. In these products the muriatic acid is mixed with a stain color.

Muriatic acid is the strongest acid available to the public. These solutions are for etching the concrete. It also reduces the surface alkalinity of the concrete that can cause some paints to adhere poorly. It is excellent for cleaning away rust stains and efflorescence but must be used with extreme caution.

The surface becomes etched and clean which allows for the proper adhesion of a new coating. Mix 3 to 4 parts water with 1 part acid or follow label instructions for a 10 concentration 15 for hard smooth concrete. Muriatic acid is dilute hydrochloric acid. You roughen such a floor by etching it with muriatic acid.

You may also use a paint roller or handheld brush for stain application in smaller areas and tight corners on the slab. As long as you follow safety precautions you can use it around the house to clean concrete stains etch concrete for painting. Despite its effectiveness muriatic acid should be used on concrete stains only if you ve tried gentler alternatives to no avail. Muriatic acid acts like liquid sandpaper by roughening the surface of the concrete.