Muriatic Acid On Concrete Floors

You roughen such a floor by etching it with muriatic acid.

Muriatic acid on concrete floors.

Muriatic acid can work wonders on filthy concrete and it can also be very useful in cleaning excess smears of dried mortar and grout or when attempting to alleviate tough rust stains. If you re just removing mineral deposits efflorescence use a much weaker mix 10 1 or 16 1 for muriatic acid. It also reduces the surface alkalinity of the concrete that can cause some paints to adhere poorly. You should see a chemical reaction as soon as you apply the muriatic acid.

You may have heard that it is possible to use muriatic acid to etch your concrete surface. However using muriatic acid is not a wise idea because it can actually cause damage to the concrete surface and to people pets and plants. Use a sprayer or watering can to evenly distribute that acid and let it sit for 2 15 minutes or until it stops bubbling. Add small amounts of lime and muriatic acid until the leftover acid is all gone and the solution is no longer fizzing.

Leave it in place for 20 minutes. Muriatic acid creates and acidic vapor that can suffocate you quickly. It should be handled with extreme care. Use ample amounts of water to dilute the acid as it washes away.

Mix 3 to 4 parts water with 1 part acid or follow label instructions for a 10 concentration 15 for hard smooth concrete. Always wear a carbon activated mask. Then mix 3 or 4 parts water with 1 part muriatic or hydrochloric acid in a plastic bucket. Using acid is dangerous.

Use a garden hose and sprayer to rinse away the acid once the stain is gone. Muriatic acid is one of the stronger acids so you ll need lots of caution and safety gear rubber boots or coveralls respirator mask safety goggles and thick gloves step 4 apply the acid. The solution begins to bubble and it lifts and removes the stain. Spray the floor with water until it s completely wet.

Muriatic acid is diluted hydrochloric acid. Slowly add the muriatic acid. 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. Before you can apply the acid wash to the flooring you have to first lay a layer of water.

These solutions are for etching the concrete. When you acid etch concrete wear long sleeves gloves eye protection and a face mask to protect yourself from stray acid. 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.