Crude gypsum is applied to be a fluxing agent, fertilizer, filler in paper and textiles, and retarder in portland cement. About a few-fourths of the total manufacturing is calcined for use as plaster of paris and as setting up elements in plaster, Keene’s cement, board goods, and tiles and blocks. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050