UPA Top Coat Plasterboard Joint Compound is a ready-mixed, white water-soluble vinyl- based mixture used for plasterboard joints. This non-asbestos compound is smooth and easy to use, dries quickly and sands smooth. It can be applied over base coat or multipurpose compound for a high quality hand and machine finishing. It is also an ideal compound for texturing and skimming interior walls or ceilings. Packaging is available in 25 kg bucket, 28 kg bucket or 20 kg box.