California One-Kote is a gypsum-based, quick-setting, patching plaster for repair and renovation of gypsum plaster wall systems. California One-Kote is designed for a 'one coat' application up to ¾' of an inch thick in one pass. Color may be added to California One-Kote. A gypsum plaster finish may be applied over California One-Kote and the finished surface may be painted.