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 Stone & Tile Restoration

I have an unusual problem. A customer of mine installed a limestone wall on the outside of his property. It is adjacent to and old limestone wall that has a growth of algae, mold and lichens. Can I get the new wall to look like?

In other words how can I grow algae and molds on the new wall? For this question I contacted a bryolgist at a major university. Bryologly is the study of molds and fungus. He gave me the following formula. Prepare the following mixture and paint it... Read More

Is there an easy way to polish a marble wall surface?

Polishing a wall is time consuming but you can speed the process by using the largest drive plate you can purchase for your polishing machine. I would recommend using at least an eight inch drive plate. Several stone equipment suppliers have machines... Read More

I am having trouble coloring a polyester with black color. It seems that if I add too much color the polyester gets gummy and difficult to mix. I am trying to mix a deep black to match a repair in a black absolute granite, any suggestions?

If you mix too much color with polyesters they will get gummy. I would suggest purchasing a black polyester. These are available from your stone chemical supplier. You may also want to try using an artists oil color called “Lamp Black”. This is... Read More

I am having a lot of trouble trying to match the color on a norweign rose marble. The stone has a lot of chips that I need to fill and I can’t seem to get the color matched. Do you have any helpful hints?

You are probably using a white or buff colored polyester. These colored polyesters are hard to color since they have a bright translucent hue. The best polyester to use would be a transparent type. To mix the proper color you can purchase artists oil... 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 have these circular scratches in a large granite floor. The scratch pattern is in a row of three in each tile and is about ten inches in diameter. The tiles are 12 by 24 inches and the scratch pattern runs perpendicular to the longer edge of the ti

If these scratch patterns are what I think they are then they probably occurred during fabrication. Some polishing machines have ten inch diameter polishing heads. It is not unusual to have these patterns show up after the floor has been polished.... Read More

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