Alkyd-based, viscous undercoat for enamel paints, suitable for the preparation of wood surfaces and walls. It adheres strongly, has high coverage (also fills), works, spreads and sands with ease. Creates an ideal, smooth surface and yields extra durability to the topcoat. Apply it on new and/or existing, puttied wood surfaces (doors, windows). Apply it also on skimmed surfaces made of marble-based plaster and drywall.