Marble Acid Etching

Although they look a lot like stains an etch mark is a physical alteration to the marble s surface by the acid.

Marble acid etching.

These stains can be difficult to remove but not impossible. Please note that scratch marks from sample preparation will also become apparent. 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. 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.

Marble s reagent aka marble s etch is a metallographic etchant for etching 300 series austenitic stainless steels nickel and cobalt based superalloys. Soda spill on limestone. If needed a professional marble restorer can always be called to repair the damage. Here is a list of some surprising substances that can etch stone.

This product is made with reagent grade chemicals. A sealer helps prevent stains but does not stop acid etching said hunter dasch vice president of rose restoration 800 413 9893. Etch marks are not stains. Etching is a corrosive chemical reaction that essentially eats at the marble.

Acid stains such as by a toilet bowl cleaner or battery acid cause what is known as etching on marble. Think of it like a burn that removes the finished. The etchant will darken austenitic grains attack sigma phases and show grain flow. Lower than a 7 is on the acid side and higher than a 7 is on the basic side.