COMPOUND COATING FOR WOOD

摘要

A compound coating comprises an alkyd resin undercoat formed by applying alkyd resin coating material (a1) to wood and allowing it to dry; and siliceous coating formed by applying siliceous coating material (b1) on top of the resin undercoat. The material (a1) comprises long oil alkyd resin having oil length of at least 60% and oil iodine number of >= 100; mineral component (a2) and solvent. The material (b1) comprises water glass or mixture of silica sol and water glass, where molar ratio of silica to alkali oxide is 5-30 mol of silica/mol of alkali oxide; and mineral component (b2). Independent claims are included for the following: (1) preparing the compound coating involving priming the wood by applying and allowing to dry at least one layer of the alkyd resin coating material (a1), and applying and allowing to dry at least one layer of the siliceous coating material (b1) on top of the undercoat; and (2) a compound coating kit comprising the alkyd resin coating material (a1) and the siliceous coating material (b1), where the coating materials are spatially separated.