1. Efflorescence - Removal and Prevention   Efflorescence - Removal and Prevention   By Frederick M. Hueston www.stoneforensics.com The crystallization of soluble salts in Historic masonry causes severe deterioration of the substrate. This crystallization is called subflorescence.... Read More
2. Efflorescence - Removal and Prevention Efflorescence - Removal and Prevention By Frederick M. Hueston www.stoneforensics.com The crystallization of soluble salts in Historic masonry causes severe deterioration of the substrate. This crystallization is called subflorescence. These salt... Read More
3. Why White Marble Turns Yellow: Causes and Cures Fred M. Hueston, PhD Sitting in my office one morning I received a call from a very upset home builder. He told me he was building a two million-dollar home on the west coast of Florida. They had installed nearly 3500 square feet of a white st... Read More
4. Should I polish and seal my new marble flooring? Q: Just had a new marble flooring installed (approximately 2500 sq. ft). Contractor did not mention polishing or sealing--job is now over..just told me to use water to clean the floor. I have since tried to find some info----do you recommend polishin... Read More
5. Stain in granite Q. I have a stain around a hand soap dispenser on my granite countertop. It is a dark grey in color. Approximately 1" wide. It appears when hole was cut in granite to make room for a hand soap dispenser, it was not properly sealed. The stain is eithe... Read More
6. How do I remove the toothpaste stain from my marble vanity? Q: I have a toothpaste stain on my marble vanity top in my bathroom. Do you suggest your product for removing this type of stain and can you give me any additional advice on applying a poultice to marble?A: To remove toothpaste stains from marbl... Read More
7. I understand that some stones that are more porous than others and one application of sealer/impregnator may not be enough. But how will I know? Q. I understand that some stones that are more porous than others and one application of sealer/impregnator may not be enough. But how will I know?A. On granites, at least two applications are recommended, with at least two hours in between applicati... Read More
8. When will I know if it is time to re-seal my granite? Q. When will I know if it is time to re-seal my granite?A. To find out if your stone is still adequately sealed, spill some water on it and wait for approximately half an hour, then wipe it dry. If the surface of the stone did not darken it means th... Read More
9. How do I know if my stone should be sealed? Q. Please tell me how do I know if my stone should be sealed?A. There is a good rule of thumb to find out if your stone should be sealed. Spill some water on it and wait for approximately half an hour, then wipe it dry. If the surface of th... Read More
10. How should I care for my natural stone floors? First, Invest in Quality Cleaning Tools. A cleaning chore—any cleaning chore—is never a matter of a cleaning product only. The implements—cleaning rag, paper towel, scrubbing pad, squeegee, etc.—are important considerations as... Read More