Acid Burn Granite

Marble and limestone have a high amount of calcite and are most susceptible to etching but granite is not impervious.

Acid burn granite.

It is quite possible that the damage is minor but the most reasonable method of restoring the surface is by polishing. If you have to ask this question you may not be competent to deal with this acid. When acid etching occurs you can often repair the surface by polishing away the damage and restoring its shine. The chemicals fall to earth as acid rain.

Acidic foods such as lemons or tomato sauce can discolor a granite counter top and mar its beauty. A positive vigorous reaction indi. Chemical burns are also known as caustic burns. Sulphur dioxide a byproduct of industrial development and burning fossil fuels combines with nitrogen oxide an air pollutant created by car exhaust furnaces boilers and engines.

For the sake of your granite we do not recommend diy solutions to granite etching. Acid rain is slowly destroying once resistant granite. First rinse the area thoroughly with water to dilute and remove as much of the lye as possible. Granite is mostly silica and hydrofluoric acid is used by geologists to dissolve silica minerals.

Wine and other alcohol. Although it is resistant to etching acids and other corrosive agents may etch its surface. Next you can try using a poultice to draw the stain out of the stone. Two paths could be taken first check granite and marble suppliers to see if they offer supplies or a service to polish.

Granite etching is usually due to the frequent use of improper cleaning products or acidic food spills that have been neglected. Acids in foods household cleaners and other substances all have the potential to make the finish look dull and damaged. The acid has reacted with the granite and etched the surface very slightly. Why acids damage granite.

It should also dissolve most of the feldspar but the presence of calcium minerals forms insoluble calcium fluoride. The reason acidic cleaners damage natural stone is because stone contains some concentration of calcite which reacts to even weak acids by dissolving. Granite is not however invulnerable to damage. Get 30 40 hydrogen peroxide the chemical grade version which is available at chemical supply stores some beauty supply stores and online.

Acid rain is created by air pollutants. The acid test is one of dropping cold dilute 10 hydrochloric acid hcl on a mineral or rock.