Etching Concrete Floor With Muriatic Acid

Eco friendly products are available as well which are biodegradable and easier to dispose of in most communities.

Etching concrete floor with muriatic acid.

It also works at emulsifying oils something that muriatic acid will not do. You roughen such a floor by etching it with muriatic acid. Muriatic hydrochloric acid is typically used for concrete etching. Phosphoric acid which is a mineral acid works almost as well and isn t as dangerous to work with but it is harder to find and more expensive.

Mix 3 to 4 parts water with 1 part acid or follow label instructions for a 10 concentration 15 for hard smooth concrete. Muriactic acid is one of the most dangerous chemicals you can buy for home use and it can damage nearly everything it touches. It also reduces the surface alkalinity of the concrete that can cause some paints to adhere poorly. The good thing is that there are safer alternatives that are just as effective available in the market today.

These solutions are for etching the concrete. Use muriatic acid or another acid etching material such as klean strip green muriatic acid a safer muriatic acid or hydro etch 1000 which is a modified phosphoric acid which is not as harmful as traditional muriatic acids. If you don t like the idea of working with acid you can read about some safer alternatives to acid etching here. Muriatic acid acts like liquid sandpaper by roughening the surface of the concrete.

Some homeowners shy away from acid etching of their concrete floors for fear of the harmful effects of using and handling muriatic acid the main component of acid etch flooring. If you re just removing mineral deposits efflorescence use a much weaker mix 10 1 or 16 1 for muriatic acid. Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water. 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.

A smooth concrete floor must be roughened before paint will stick to it.