Knauf FinalCote finishing compound is a premixed, air-drying, easy sanding compound developed especially for use as the ideal finishing coat for all plasterboard joints, angles and fastener heads. A premium grade semi-lightweight finishing compound, making it perfect for use on all types of internal and external walls, ceilings and roofs. Once applied the plaster provides a smooth finish that can be sanded by hand or with mechanical tools to achieve a really smooth finish perfect for painting.