Make sure you wear your respirator and gloves and lean as far away from the bucket as you can to minimize any danger of being splashed.
Muriatic acid to clean oil from concrete.
Add small amounts of lime and muriatic acid until the leftover acid is all gone and the solution is no longer fizzing.
Despite its effectiveness muriatic acid should be used on concrete stains only if you ve tried gentler alternatives to no avail.
It s very important to only add the acid to the water.
Working with muriatic acid is dangerous.
The acid works well on concrete and on many masonry projects because it neutralizes alkalinity.
Never add water to acid.
Wear eye protection put on rubber gloves to protect your hands and arms and make sure that there s plenty of ventilation.
The most common acids used to clean concrete and bricks are hydrochloric acid muriatic or phosphoric acid.
Also remember to add the acid slowly to the water source.
Slowly add the muriatic acid.
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.
The surface becomes etched and clean which allows for the proper adhesion of a new coating.