Tool and method for the manufacture of plastic molding multilayer

Tool for making plastic moldings with multilayer plastic substrate (7) and paint coating (10) formed by at least two tool halves (1,2) and a cavity in which is housed the plastic, and a casting system (9) with a sprue, characterized in that a) an insert of separating tool (5) interchangeable with a layer of permanent or semipermanent separation, b) an insert separating tool ( 5) interchangeable it composed of a material that separates permanently, wherein the insert separating tool (5) forms part of the feed system adjacent to the cavity (8) to the varnish (10).