| abstract |
The invention relates to a method for impregnating wood or wood materials under pressure with a wood preservative containing liquid glass. In the method according to the invention, the wood or wood material is treated prior to the impregnation stage, leading to its blueing, so that the wood or wood material to be impregnated is at least partially coated with blue and / or mold, and after or before the wood is impregnated or the wood material is subjected to high-temperature drying and / or heat treatment in such a way that the blueing and / or mold formed during the blueing process is no longer visually observed in the wood, Even after its machining. |