Use of Calcium Sulfate Gypsum as a Fire Retardant
Although calcium sulfate dihydrate, commonly referred to as gypsum, has been utilized for some time in fiberglass reinforced polyester (FRP) applications, it does not have the fire retardant filler recognition of ATH. Gypsum is more commonly known for application in cement, soil and water treatment, plaster, and wallboard. Inherent characteristics of gypsum limit its use to low temperature ...