High-quality gypsum plaster panels - are mfd. by mixing up given proportions of gypsum old paper and water and pressing in one piece or in layers

摘要

High-quality plates or panels used in a building may be made of fibrous gypsum material. The panels may be made in one piece or may be built up in a series of layers. Hard setting gypsum, water and fibrous material are mixed together and pressed and the operating parameters are so varied that the final strengths of the individual panels remains the same. Old scraps of paper may be used as the fibrous material, and the layers may be built up in a given way. USE/ADVANTAGE - High-quality gypsum plaster panels may be built up cheaply and reliably.