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But first, is it advisable to speed the dry time of a poultice? Before we speed the drying time of a poultice, we should first consider whether it would be advisable to do so. You should only speed up the drying time on a poultice if the poultice has... Read More

The "Orange Peel" Effect on Marble Working with marble polishing powders is both an art and a science. Improper use of polishing powders can result in what is known in the stone and tile industry as "orange peel," that is, marble that has a dull and... Read More

Graffiti Removal Procedure for Stone, Masonry, and Tile Surfaces By Frederick M. Hueston, www.stoneforensics.com If your beautiful building, wall, or other surface has just become the unintended canvas for graffiti, your first reaction might be to... Read More

The stone should be completely dry for the sealer to work at its best. If the stone is still wet the sealer will not penetrate areas were water is present and therefore that portion of the stone will be unsealed. If the stone has some moisture(damp),... Read More

A common problem with limestones and some marble buildings is that they get a brownish yellow hue after cleaning. Most of the time we find that there is a high content of iron in the water used to clean the stone. Use a chelating agent in the wash... Read More

When you should clean an old stone building will depend on which climate your building is located in. If located in the northern hemisphere never schedule cleaning during the winter months, since freezing temperatures can cause the stone to spall.... Read More

A poultice will work best at temperatures above 75 degrees Fahrenheit. Do not apply poultice below freezing temperatures. CAUTION Do not attempt to heat a poultice. Certain chemicals will ignite or explode when heated. Refer to the MSDS. Read More

A poultice is a chemical mixed with an absorbent material that is applied to a stone or other materials. A poultice can be used on surfaces other than stone. Poultices can be used on a variety of surfaces, including concrete, brick, wood, and even... Read More

First of all, don’t waste too much time in applying poultices to large areas if it would be easier and cheaper to replace the material. Here are some suggestions for applying poultices to large areas: Use multiple poultices and work in... Read More

Distilled water should be used in poultices, because it does not contain minerals such as chlorine, iron, and others or contaminants that can reduce the effectiveness of the poultice. Poultices work by drawing staining agents out of a surface and... Read More