How are you going to wash the concrete to get rid of all of the acid? If you don't get rid of all the acid, paint is not going to stick.
YES!
To test a concrete floor for sufficient dryness before painting you should tape a two foot by two foot square of (clear) plastic film to the floor, wait 48 hours and see if the concrete is darker under the plastic or if any condensation has occurred on the underside of the plastic. If so then the floor is not dry enough. If no condensation or darkness, paint.
No. Latex paint is not affected by muriatic acid.
No muriatic acid cannot etch ceramic tiles because it does not corrode or react with glass or ceramic. That is why muriatic acid is also available in glass bottles.
you can use muriatic acid for small amounts of haze and residue, larger amounts may be more difficult.
YES!
Etching of the old concrete with muriatic acid is sometimes done to slightly roughen the surface. There are also commercially available bonding agents available at concrete suppliers and at some home centers.
Muriatic acid,used for etching concrete and changing PH level in pools is a watered down hydrochloric acid available at most paint and hardware stores and Home Centers.
muriatic acid should not cause discolouration to concrete it will eat it away though.
Concrete is very hard. To do any good in etching it you need something very strong. Muriatic Acid is the only thing that I have found that works. How strong you mix it depends on the concrete. Some concrete that was poured with a lot of water in the mix will need less Acid. Concrete that is smooth and hard will take more. Muriatic Acid is caustic. Read the direction. Use rubber gloves; safety glasses; and a respirator. For a large project, such as a driveway or Patio. Use a plastic garbage can. Fill with 10 gallons of water. Carefully pour one gallon of Muriatic Acid into the water and mix with a wooden paddle. Take a plastic watering can and fill it with the solution. Wet your concrete with a water hose, then carefully pour the Acid solution onto the concrete. It will bubble and foam. This is the acid etching the concrete. Let it set for about 15 min. Scrub with a stiff push broom, and then rinse with a water hose. The acid will kill plants and grass. Steve Schillinger sds@knology.net = Safety Note = Make sure you put the water in the garbage can first--adding water to acid is a sure way to get splashed with concentrated acid.
from my point of view muriatic acid can not soften concrete but can affect minimal with the help of pounding the surface and spraying or painting with muriactic acid then repeating several times until it breakdown
To clean concrete among other uses
Hydrochloric acid is hydrogen chloride gas dissolved in water. It is a strong, highly corrosive, poisonous acid that has millions of uses in thousands of fields, from etching metal to cleaning concrete to digesting food in your stomach to lowering the pH of swimming pool water. It is also known as muriatic acid.
= sulfuric acid VERY rare but it is used and with lots of caution... Muriatic acid DILUTED for concrete cleaning etc. =
Although muriatic acid is effective at removing cat odors from cement it is a very dangerous acid. Diluted with water, it makes an effective cleaner for cement.
A dilute solution of muriatic acid is used by the pros.
pitting and flaking of the surface