Brick
GPC: 10003896
Plaster of Paris (Moulding Plaster)
Includes any products that may be described/observed as powdered and heat-treated gypsum, which can be mixed with water (about 2 parts plaster to each part of water), hardening to a smooth solid which does not shrink or lose volume because it hardens before all the water can evaporate.
Excludes: Excludes plaster (mix) and cement as well as stucco and concrete.