INTRODUCTION
Impregnation as a protection procedure increases durability of made wood products. The procedure includes the exposure of timber products in the kettle to vacuum (drying) and then to the impregnation agent, extending their durability to 20 years. The whole procedure lasts six hours and the impregnated products have an increased resistance to atmospheric influences as well as plant and animal destruction.
It is possible to impregnate all types of wood products such as timber and other coniferous wood products, which do not exceed the dimensions of the kettle (diameter: 1.9 m and length: 24 m).