Mix 3 to 4 parts water with 1 part acid or follow label instructions for a 10 concentration 15 for hard smooth concrete.
Clean concrete floor with muriatic acid.
Oxalic citric and muriatic acid are commonly used to clean concrete and masonry.
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.
If the acid comes in contact with skin wash it away with large amounts of water.
It also reduces the surface alkalinity of the concrete that can cause some paints to adhere poorly.
Masonry projects that use cement products like mortar concrete and grout can be messy muriatic acid is a sure way to clean masonry surfaces this product is a very strong acid that will clean dried cement products off stones bricks and other masonry surfaces.
These solutions are for etching the concrete.
If you re just removing mineral deposits efflorescence use a much weaker mix 10 1 or 16 1 for muriatic acid.
Step 1 clean the surface.
With proper use it removes stains when other cleaners fail.
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.
In order to achieve the perfect finished project you must first clean the floor which you plan to acid wash.
Muriatic acid is the strongest acid available to the public.
For cleaning a concrete floor the equipment used should have a pressure rating of 3 000 psi minimum and a flow rate of at least 4 gallons per minute both the pressure and flow rate are needed to clean a concrete floor at an acceptable rate.
It is excellent for cleaning away rust stains and efflorescence but must be used with extreme caution.
You roughen such a floor by etching it with muriatic acid.
Follow these easy steps to acid wash your concrete or garage floor.
Hose the surface in order to remove any tough particles.
Acid etching is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water.
A smooth concrete floor must be roughened before paint will stick to it.
Muriatic acid should never be used indoors and has to be thoroughly neutralized before disposal.
