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We have a beautiful set of stone steps leading to our front door. They are polished and very slippery when it rains. Is there any treatment we can apply to make them less slippery? I am afraid someone will fall and break their neck.

There are several options for making the steps less slippery. Option 1. The steps can be honed and the polish removed. The high-gloss shine will be gone, but the steps will be less slippery. Option 2. Slip tape can purchased at your hardware or home... Read More

We have a black marble floor that appears to have raised veins. In other words the white veins in the marble appear to be lifting up and in some places are falling apart. What causes this to happen?

I am assuming that the black marble you are referring to is negro marquina. If this is the case you will find that this type of black marble is very susceptible to spalling of the veins. Over-polishing with either powder polishes or recrystallization... Read More

I have a maintenance account with a large building and have noticed that the granite on the outside of their building is crumbling and falling apart. This condition is getting worst every year especially during the spring months. What’s causing

This is a problem in northern climates where de-icing salts are used. During the winter months deicing salts are used to melt the snow and ice. When the weather warms, the salts are dissolved and carried into the granite. When the granite dries, the... Read More

I was called to remove a heavy wax coating on a granite floor. I’ve discovered that the janitorial company has been stripping and waxing this floor for several years. The problem is the granite is developing small pits and appears to be falling

The problem may be with the strippers that have been used. Many strippers have an alkaline pH and this can lead to the deposit of alkaline salts in the pores of the granite. If the stripper is not rinsed throughly and any stripper residue is left... Read More

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