A drywall panel consists of a gypsum core wrapped in several layers of paper (typically recycled paper). During manufacturing, a slurry of dense liquid gypsum is poured onto continuous sheets of paper. This is followed by a center layer of aerated gypsum and topped with another dense layer of gypsum before more paper is sandwiched on top.
Stucco, or portland cement plaster, is a versatile facing material that can be applied to flat or curved surfaces either inside or outside any building or structure. Stucco has great appeal as a surface finish because of its utility, low first cost, and minimum need for maintenance.