Marble Acid Etching

The etchant will darken austenitic grains attack sigma phases and show grain flow.

Marble acid etching.

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. 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. These stains can be difficult to remove but not impossible.

Lower than a 7 is on the acid side and higher than a 7 is on the basic side. This product is made with reagent grade chemicals. Soda spill on limestone. Etching is a corrosive chemical reaction that essentially eats at the marble.

Think of it like a burn that removes the finished. Please note that scratch marks from sample preparation will also become apparent. Etch marks are not stains. Acid stains such as by a toilet bowl cleaner or battery acid cause what is known as etching on marble.

When my husband and i were researching our kitchen renovation a couple years ago marble countertops were the clear frontrunner but we were nervous about the inevitable etching. Etch marks are commonly identified as water marks or stains. Although they look a lot like stains an etch mark is a physical alteration to the marble s surface by the acid. Marble s reagent aka marble s etch is a metallographic etchant for etching 300 series austenitic stainless steels nickel and cobalt based superalloys.