Stone Countertop Discoloration: Staining vs. Etching
Owners of stone countertops may notice various discolorations on the counter surface over time, caused by a number of factors. These blemishes can broadly be classified as either staining or etching, and each has its own preventative measures and repair methods. Therefore, it’s important to know what kind of discoloration you are dealing with, and which steps to take to both protect your stone countertops and fix any existing damage.
Staining: The porosity of natural stones varies greatly, and so does, of course, their absorbency. We seal our products during installation to help prevent staining; however, this process does not make the stone 100% impervious to liquid. Some stones may absorb liquids, and if such liquids are staining agents, a stain might occur. A stain is usually darker than the stained material, while the surface finish of the stone remains smooth.
Etching: Other “discolorations” have nothing to do with the porosity of the stone, but rather are a result of damage to the stone surface. If the discoloration appears to be lighter in color (may look like “water spots” or “water rings”), it is probably an etch mark. An etch mark is a chemical burn that forms when acid, ammonia, or alcohol comes into contact with the calcium carbonate element that exists in certain natural stones. These marks look like the finish or the shine has been removed from the surface of the stone. The area that is etched can feel a little rough to the touch. Etching is most common on marble, quartzite, travertine, onyx, and limestone surfaces.
GOOD NEWS! Stains can usually be removed and most etch marks can be repaired. Just give us a call! Our skilled craftsmen are specially trained to repair your stone and protect your investment.
Fabulous product selection and staff!!! We had a wonderful experience!! Bill E. – Saratoga Springs, NY
The granite counter top is perfect! This is our second experience with Granite & Marble Works, Inc. Both times have been a pleasurable experience from the knowledgeable staff in the office, the detail to measuring to the final installation. Highly recommend this company. Ronnie P. – Albany, NY
Perfect. Completed in less than a workday. George and his crew cleaned up after themselves and were very professional. My wife and I are extremely happy. Happy wife = happy life. Robert M. – Voorheesville, NY
My experience with Granite & Marble Works was exceptional. The staff was pleasant, helpful, answered my questions and returned my calls in a timely manner. But what impressed me the most is the honesty of this company! I highly recommend! Holly B. – Saratoga Springs, NY
Great professional service for new kitchen countertops. Margaret made the entire process from selecting the granite to installation extremely easy. Would definitely recommend Granite & Marble Works! Christian J. – Slingerlands, NY
It was a very pleasant experience from several trips back to the final selection of the stone, measurement and installation. A very easy process and the staff were extremely professional, kind, patient and courteous. I would trust Granite and Marble Works with future projects. We are extremely pleased with the results. Donna M. – Saratoga Springs, NY
Two really great experiences with them back to back. Super friendly staff and very professional. Two thumbs way up from a pretty exacting customer – great experience. M.D. – Queensbury, NY
Perfectly. Professional, willing to work with the customer, courteous. This is an A+ provider! Ann G. – Saratoga Springs, NY