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.
Acid painted concrete floor.
Allow the cleaned surface to dry.
If the concrete surface is painted or sealed acid stains cannot penetrate the concrete and react with the lime.
Acid based and water based stains.
Acid based stain and water based stain.
Solid colors borders or stencils are great tools for painting concrete floors.
Acid staining and sealed.
Step 2 buff the concrete surface.
How to repaint concrete floors.
Here are the pros and cons of each.
It also won t fade peel or chip.
Mix 3 to 4 parts water with 1 part acid or follow label instructions for a 10 concentration 15 for hard smooth concrete.
Acid etching solutions or stains are a different look take more time and skill to transform your floors completely.
Floor and concrete stains are usually easier to apply than paints but they require more frequent reapplication to keep looking fresh.
Use a floor buffer for scuffing away the loosened spots of paint.
Before you can apply a concrete paint clean it with degreasers to get rid of any oil or grease stains followed by muriatic acid to remove any curing chemicals on the concrete s surface.
Rather than coating the floor in one entire color concrete stains create a pigmented marbled effect.
If your painted concrete floors scratch touch up with concrete floor paint and epoxy paint.
Concrete paints completely cover and protect the concrete surface but require a lot of prep work.
A floor buffer is a fast moving high powered machine.
Concrete paint can be purchased in either latex or oil based epoxy enamel.
Doing the prep work before you repaint a concrete floor avoids a peeling paint job later.
A moist surface isn t ideal for further cleaning or painting.
If you re just removing mineral deposits efflorescence use a much weaker mix 10 1 or 16 1 for muriatic acid.
Our floor required a mixture of grinding filling divots with concrete crack filler using acid cleaners filling and leveling out tension breaks in our floor sanding and scraping.
These solutions are for etching the concrete.
There are two types of products you can use for staining concrete floors.
Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water.
The chemical stains or acid stains react with the concrete s lime content and produce the color.
Acid based stain the color palette is more limited but the stain typically lasts longer than water based so it s the best solution for high traffic areas.
Painting concrete floors finishes.
You can rent a floor buffer from a hardware supply store.