Masonry Magazine December 1986 Page. 30
Letters
continued
As a manufacturer of concrete masonry units and distributor of masonry products, my company has made every attempt to educate our marketplace on the cause and control of efflorescence.
My company has had a great deal of success in controlling efflorescence over the last three years by offering the Dry Block System. This system consists of a highly water repellent CMU additive and a highly water repellent mortar additive produced by Forrer Chemical Company of Milwaukee, Wisconsin. Since we began using Dry Block we have not had one complaint of efflorescence after the initial wash-down of the wall. Dry Block inhibits water penetration through both the CMU and mortar joint. If water can't penetrate, soluble salts can't form and, therefore, efflorescence is prevented.
My company does not distribute Dry Block. We purchase it like any other manufacturer of CMUs. We see Dry Block as a water repellent and efflorescence minimizing system for concrete masonry, brick mortar and stucco. As far as I know, Dry Block is the only product available to the masonry industry that imparts integral water repellency and minimizes efflorescence.
J. C. Henry III, Vice President
E. P. Henry Corporation
Woodbury, New Jersey
Editor:
We are interested in reprinting the article on "Efflorescence" which appeared in your September/October 1986 issue. Please supply us with the information necessary to reprint this article.
Robert L. Kight
National Gypsum Company
Southfield, Michigan
Overseas Interest
Editor:
The German American Chamber of Commerce is a bilateral nonprofit membership organization. Our aim is to promote economic development between the German and American business communities.
Recently we were contacted by a German manufacturer of building products. This company wishes to advertise its products in appropriate trade magazines. We would like to obtain samples of your magazine in order to forward them to this and other interested companies.
Axel Pollmeier
German American Chamber of Commerce
Atlanta, Georgia
Letters to the Editor
Masonry invites letters to the editor. The subject matter may address articles or topics that have appeared in the magazine or which might be of interest to Masonry readers. All letters received by Masonry are deemed submissions for publication unless otherwise stated, and are subject to editing for style, grammar and limitations of space.
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