You roughen such a floor by etching it with muriatic acid.
Cleaning a concrete floor with muriatic acid.
Muriatic acid should never be used indoors and has to be thoroughly neutralized before disposal.
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 is the process of applying hydrochloric muriatic or buffered phosphoric acid to a slab then rinsing it off with water.
Using acid is dangerous.
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.
It is however one of the oldest and most pervasive methods of cleaning concrete used by coatings installers and powerwashers.
Cleaning concrete bricks and pavers with an acid most often referred to as acid etching or acid washing is a very bad idea and no longer recommended by many coatings manufacturers.
If you plan on painting your basement s concrete floor you need to prep it first with muriatic acid.
These solutions are for etching the concrete.
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.
Muriatic acid is the strongest acid available to the public.
Muriatic acid is a strong acid cleaner used on masonry surfaces to clean stains.
A smooth concrete floor must be roughened before paint will stick to it.
Prepping a concrete floor with muriatic acid.
The paint will not stick efficiently to the concrete unless you roughen it up a bit first with the acid.
Hydrochloric acid also known as strong water or muriatic acid is a chemical normally used for cleaning hard surfaces and surfaces which are hard to clean such as brick concrete and others this is a highly corrosive product should be used with extreme caution otherwise it may damage your skin or the objects of your home.
If you re just removing mineral deposits efflorescence use a much weaker mix 10 1 or 16 1 for muriatic acid.
With proper use it removes stains when other cleaners fail.
It is excellent for cleaning away rust stains and efflorescence but must be used with extreme caution.
Muriatic acid creates and acidic vapor that can suffocate you quickly.
Always wear a carbon activated mask.
