A method of finishing an interior wall includes the steps of preparing a
substrate of building panels comprising gypsum, cement or combinations
thereof, said substrate having a surface, followed by applying a coating
to the substrate, said coating comprising 1-30% by weight of a latex
emulsion binder, 30-80% by weight calcium sulfate hemihydrate, up to
about 8% by weight of a set inhibiting agent and 20-60% by weight water.