Q. We have water-like stains on the edges of our quartzite counters and water intrusion around the sink area. How do we get it out? Should we call a plumber? What will a plumber do? Do I have to dry it out prior to sealing the areas? I imagine I do?... Read More

Q. I have used grout with a silicone additive on travertine flooring which is laid over heating. Unfortunately the grout has dried rapidly so I have not been able to wipe it off as I normally would. Please can you recommend a cleaning product or... Read More

Do Not Apply a Silicon Impregnator Over a Stain If natural stone is stained, applying a silicon impregnator is a bad idea. The stain should be addressed first. Once the stain is removed, then apply the impregnator. Fred Hueston, Chief Technical... Read More

How to Prevent Urine Stains on Marble Floors In men’s restrooms with marble floors, urine stains and odors can be a real problem. Since marble is porous, marble floors in men’s restrooms should be sealed to inhibit staining. The sealer... Read More

How to Remove Oil Stains on a Granite Floor Oily stains on a granite floor can be difficult to remove. Assuming you have not had success cleaning the affected area, your next step is to apply a poultice.  Fred Hueston, Chief Technical Director of... Read More

When carpet is removed from terrazzo, it often leaves behind a large yellowed area the shape of the carpet. This is common problem with carpets that have jute or rubber backings. Moisture becomes trapped under the carpet and causes the dye in the... Read More

When poulticing a rust stain on a marble floor, the stain can become darker and more wide spread. What is happening? Chances are the source of the rust is under the tile. A nail or metal object may have been left behind when the tile was installed.... Read More

Once a stain is removed, it may come back, depending on how deep the stain is or what caused the stain in the first place. If the stain is coming from behind the stone, chances are it may come back. If this is the case and the stain reappears I would... Read More

I would not recommend using bleach on any marble floor as a daily cleaner. Household bleach can cause staining on certain types of marble. Advise your customer to use only a good stone soap or neutral cleaner. TIP: Occasionally, you will see bleach... Read More

Q. How do we clean white spots from bird droppings on colored concrete? We have a church under construction with tiles on the floor. Windows hadn't been put in yet, and birds came in. The tiles are left stained white from the droppings.Â... Read More