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By etching a concrete surface you are providing the adhesion needed for the paint to stick. For paint to stick the surface must be rough - it cannot be smooth or slippery in anyway or the paint will simply peel off.
Like doors and frames they need to be sanded back before they can be painted. The reasoning being that otherwise the gloss finish will not allow the paint to stick. By sanding it to create a rough finish so the paint has something to stick to.
When I say rough however - Don't misunderstand me as to think it should be really rough. The surface should still seem rather smooth however as long as its not glossy.
In the same way concrete needs to be etched or roughened so that paint can adhere to the surface. You can do this in two ways.
One is to use Hydrochloric Acid - Simply dilute it 1:10 or stronger if required and then tip it onto the concrete. Broom in and when fizzling has stopped rinse off. Make sure you rinse it off properly or it also will repel the paint.
Your other option which is becoming the more popular now (as people don't seem to follow instructions with the first and always and have problems) is to use a dinosander. Sand the surface down and rinse off - This is problem proof and easy to do. You can hire one from your local hire shop.
As I say both will work but the latter is becoming more popular as you can't go wrong.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoTo prep the surface use quikrete etching stain. Quikrete offers a semi-transparent stain that gives it a two-tone look. It comes in a variety of colors. I know Lowe's offers it for around $25-$30 a gallon. Also they have a product that is etch and stain in one. Only certain Lowe's carries it. You may be able to special order it in.
Wiki User
∙ 16y agoIt remove the silicates the give concrete its smooth finish and creates a profile for mechanical adhesion.
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Etching concrete indoors with muriatic acid?
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.
When etching concrete on basement steps will muriatic acid eat through the drain pipe at the bottom of the steps?
YES!
Can you paint the concrete floor as soon as muriatic acid etching dries?
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.
What is etching on paper?
An etching on paper is a print made from a metal plate, called an etching.
How much is an etching of artist L Brunet debaines worth?
How much is an A. Burnet De Baines etching worth?
Etching concrete indoors with muriatic acid?
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.
When etching concrete on basement steps will muriatic acid eat through the drain pipe at the bottom of the steps?
YES!
What will increase bonding of old and new concrete?
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.
In what household product would you find hydrochloric acid?
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.
How are old etching prints restored?
Undetailed info: it has to do with "bathing" the etching sheets in mild acid baths
Used in the etching of glass?
HF, Hydrofluoric acid.
Can you use white distilled vinegar to etch concrete?
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.
What is hydrochloride acid?
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.
What will an acid eat away metals by a process called?
Etching
How do you clean etching on drinking glasses?
By applying "Hydrofluoric" acid.
What does etching a concrete surface do?
Cleans it and roughens it, usually so paint will stick better.
Chemical name for glass etching solution?
HF or Hydroflouric Acid
