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.
Did the Electrical Underwriting Inspections there last year on the new facility and show room, got to see every aspect up close and personal, very impressive. Being an artisan also as my 2nd career this is mother nature and art at its best. Michael K.
Great selection of stone, very skilled and professional. Highly recommended! Carl L. – Glens Falls, NY
They did a fantastic job in our kitchen remodel. Curtiss C. – Glenmont, NY
Thank you so much! We had the best service ever today with Brian. Right on time, took the time to correct plumbing issue and did a fantastic job! Will definitely recommend your business to anyone! Jane D. – Johnstown, 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
I liked that this is a family owned business and the owners are involved in the day to day operations. They have a fantastic selection of granite and the prices are clearly marked making staying within your budget simple. The installers are very personable and prompt. Andrea D. – Clifton Park, NY
Thank you for a magnificent job! Our new beautiful kitchen counter tops are perfect. Deb J. – Slingerlands, NY
We are extremely satisfied with our Beautiful new Granite Countertops!! Everyone we dealt with through the whole process was very professional!! This is our first experience with Granite and Marble Works, inc. and we surely will be recommending them to our family and friends!!! Heather S. – Latham, NY