Muriatic Acid Oil Stain Concrete

Scrub the gray stain with a solution of 1 cup liquid chlorine bleach 1 cup powdered laundry detergent and 1 gallon of very hot water.

Muriatic acid oil stain concrete.

How to use muriatic acid to clean concrete. Despite its effectiveness muriatic acid should be used on concrete stains only if you ve tried gentler alternatives to no avail. Before you remove stains from your driveway make sure to thoroughly protect yourself. Safer alternatives include trisodium phosphate which still poses risks but is not as strong as muriatic acid and sandblasting which is a manual rather than chemical process.

Make sure the detergent you use is ammonia free. The center for disease control recommends that you use a respirator specifically designed for hydrochloric acid a chemical resistant suit gloves face shield and goggles. Always wear a carbon activated mask. The most common acids used to clean concrete and bricks are hydrochloric acid muriatic or phosphoric acid.

You should see a gray stain. For many years it has been the standard cleaning method to prepare concrete for coatings installations to remove stains of any type from concrete and to remove concrete slurry or efflorescence from bricks. Muriatic acid is highly corrosive and must be used with caution. Mold rust and other stains can mar the clean beauty of your concrete lessening the visual impact and even the curb appeal of your property.

Mixing ammonia with bleach creates a lethal gas similar to mustard gas. How to apply muriatic acid.