Gypsum mortar is a new, more environmentally friendly and more economical key promotion product. It is mainly made of gypsum cementitious materials, and adding sand, some admixtures and special composite additives, so as to realize the process of high efficiency and energy saving. Plastering materials for internal walls and ceilings of buildings. It not only caters to today's green environmental protection decoration theme, but also changes the traditional habit of using cement-based cementitious materials, and overcomes common quality problems, such as cracking and hollow phenomenon caused by traditional plastering materials, such as large shrinkage, poor adhesion and so on. Mainly replace cement, lime mortar and other plastering materials, suitable for all kinds of walls.