DUSTING REPORT

Technical Report No. 7
Concrete Dusting

The following is a quotation from Chemistry and Technology of Paints by Maximilian Toch, published by D. Van Nostrand Co., New York, New York.

"Portland cement is rock-like alkaline lime substance composed of sand and/or gravel mixed with cement and water. In attempting to apply paints, adhesives or floor coverings, it is recommended to clean the surface first. Surfaces are cleansed with muriatic, sulfuric or acetic acids. The application of these acids to Portland cement destroys the cement because it dissolves out the lime and leaves the sand and aggregate loosely bound.

Portland cement floors 'dust up' merely under the abrasion of the heels. Factories that have machinery, calculators, electronic or delicate instruments have found it impossible to operate under these dusting conditions. To alleviate these conditions paint or floor coverings are used."

This quotation is used to illustrate that concrete alone creates a multitude of problems. Coatings such as paint and floor coverings are used in an attempt to alleviate or enhance the use of masonry. However, such coatings have proven completely ineffectual when excessive moisture and alkali contents are present.

Concrete dusting, (small particles of the surface grinding away), which are caused by any vehicular, foot, machinery, and other traffic over the concrete surface, is a costly foe to efficiency due to damages it causes to machinery, merchandise, other equipment, and environmental health.

ULTRA GUARDs' chemical reaction with alkali and lime which causes the independent particles of concrete to solidify and strengthen the concrete, along with its ability to stop moisture, can permanently eliminate the annoying dusting up to 100% from surface abrasion and also eliminate the need for floor covering where it is not necessary.