Gypsum Wallboard Ceiling - What is Gypsum Ceiling? | Hunker / Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula gypsum can either be turned into gypsum board or remain in its powder form and be called plaster.
Gypsum Wallboard Ceiling - What is Gypsum Ceiling? | Hunker / Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, w...