Abstract: A form-fit, disposable liner for a reusable plastic five gallon paint bucket. The liner is a thin, structurally rigid, single piece plastic liner formed by a suitable plastic molding process. The liner includes a cylindrically shaped side wall and a semi-circularly shaped bottom wall that conform to the side wall and bottom wall of the paint bucket. An integral roller landing extends down from a semi-circular shaped top wall at an angle thereto, into a vertically extending planar side wall. The roller landing includes a series of integrally molded ridges that allow a coating product stored in the liner to be loaded into a paint roller. A domed lid is provided that engages with a rim of the liner in a snap-fit engagement to allow the paint product in the liner to be sealed.