Crude Gypsum is used for a fluxing agent, fertilizer, filler in paper and textiles, and retarder in portland cement. About 3-fourths of the entire manufacturing is calcined to be used as plaster of paris and as building products in plaster, Keene’s cement, board products and solutions, and tiles and blocks. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050