The impregnated materials are mainly used for outdoor constructions.  Their main values are high resistance against meteors, xylophagous insects and wood-attacking fungi.

The products are pressure-treated at the factory with Tanalith E.  The impregnation class depends on the request: the highest 4^th class protects wood products placed in the ground against rotting at least for 25 years.   

Treatment
The impregnation is the pressure treatment process in autoclave according to the formula «vacuum – pressure – vacuum». For sawn timber impregnation we use Tanalith E , produced by Arch company (Great Britain). The actual price for treatment is 50 Eur/m3.