Handbook for Cleaning Technology.
Oak Creek, WI: Diedrich Chemicals Restoration Technologies, Inc., ca. 1970. First edition. Spiral Bound. Quarto, 8.5"x11", illustrated with photocopied photographs. Good. Item #12133
An early and rare self-published guide to cleaning building exteriors, featuring techniques for cleaning many common building materials and finishes. Written and published by "the nation's leading supplier of chemical detergent products for the restoration and maintenance of buildings, new and old". A good reference for conservationists and preservationists, covers materials, types of dirt and deterioration, cleaning methods and hazards, and procedures. From the Old House Journal Reference Library.
Price: $50.00