Abstract: A disposable stiff, plastic concave line having a circular floor and a frusto-conical wall is provided for a commercially available, reusable paint bucket of standardized configuration. The liner has a transverse floor rib and a pair of parallel wall ribs inclined relative to the floor. A paint rolling screen is removably insertable into the liner and is held immobile by the floor and wall ribs. The screen provides a means for rolling excess paint from a paint roller and the liner greatly reduces cleanup time following painting.