Gypsum Wallboard Chemical Additives
forming section of the manufacturing process Stucco – Wet End Manufacture Gypsum wallboards’ major ingredient is calcium sulfate hemihydrate, i.e. stucco. Stucco is manufactured from natural rock or from a synthetic source by: Drying The crude gypsum rock is put through a kiln to remove excess water that was common from the sourceGypsum - Wikipedia,Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. It is widely mined and is used as a fertilizer and as the main constituent in many forms of plaster, blackboard/sidewalk chalk, and drywall. A massive fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia, Ancient Rome, the Byzantine Empire, and the Nottingham alabasters of Medieval EnglandMethod and Apparatus for Manufacturing Gypsum,- Justia,When, as is commonly the case, the additives and other ingredients are required within the gypsum product manufacturing process, these may be added at any stage through specially provided inlets. Referring to FIG. 3 a gypsum board manufacturing process is shown generally at 110.