Marble Acid Etchent

Acid sensitive stones like marble limestone travertine and onyx are prone to etching.

Marble acid etchent.

Acid stains such as by a toilet bowl cleaner or battery acid cause what is known as etching on marble. Marble etching occurs when marble comes in contact with acids. Any splash of lemon juice any drippy jar of tomato sauce is going to leave a subtle mark. Marble s reagent aka marble s etch is a metallographic etchant for etching 300 series austenitic stainless steels nickel and cobalt based superalloys.

It helps in preventing the etching of marble and removes the stains. Etching is a corrosive chemical reaction that essentially eats at the marble. Substances that contain acid ammonia and alcohol can etch marble meaning that the finish or the shine is removed if you accidentally spill one of these three substances. The acids eat away at the surface exposing marble that was ordinary below the surface.

When you spill an acidic substance on your marble surface the acidic agent reacts with the calcium carbonate that makes up your marble and dissolves parts of your marble surface. Marble etching occurs upon contact with acidic foods and drinks like coffee soda wine alcohol and when harsh products like bleach vinegar ammonia and most common brand name cleaners are used for cleaning marble. An etch is not a stain and cannot be prevented by using even the best penetrating stone sealer. An etch is not a stain.

Please note that scratch marks from sample preparation will also become apparent. Acid reacts with calcium carbonate and literally eats away a tiny bit of the surface creating dull spots known as etches. So in order to maintain the shine of your marble it is vital to clean those spills as soon as possible using a marble cleaner. An etch mark is most noticeable on polished marble.

Here is a list of some surprising substances that can etch stone. If needed a professional marble restorer can always be called to repair the damage. Marble is a fairly soft stone and it is prone to marking because of its calcium carbonate makeup. Lower than a 7 is on the acid side and higher than a 7 is on the basic side.

The etchant will darken austenitic grains attack sigma phases and show grain flow. Once the acid has completed its work a small spot on your marble surface has turned to a dull unpolished color.