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We have an old terrazzo floor that has been covered for years with wall-to-wall carpet. We want to remove the carpet, but it is held down by tack strips which have been nailed into the terrazzo. When I tried pulling up one strip, large chunks of the

The tack strips can be removed by cutting the nails flush with the terrazzo. A hack saw blade can be wedged under the wooden strip and the nail can be cut. A faster method would be to use a diamond saw blade mounted on a rightangle grinder. The shaft... 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

We have an interior granite wall that has some silicon caulking used in the grout joints. The silicon caused staining along the grout edges. We poulticed the stain and successful removed the staining, However after three months the stain is returning

First, did you remove the silicon caulking. If the source of the staining is not removed it will continue to be a problem. I would recommend removing the silicon caulking and replacing it with a non-staining urethane caulking. If you did remove the... Read More

Can a poultice be used outdoors?

Yes, but be sure to cover with plastic in the case of rain. You may find that the poultice may dry too rapidly outdoors. Try covering with black plastic to block the sun light. TIP To prevent rain from washing the poultice away you can place a five... Read More

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