The company canimpregnate:
- Wooden poles
- Wooden beams (short pillars)
- Wooden arms
- Rail sleepers
The wood used is pine type:
- Pinus Silvestrus
- Pinus Nigra
The impregnated wooden poles that reach the company are transported from the open spaces by rail to a closed interior of the factory, where they are impregnated. The material used for impregnation is creosote oil type WEIBor water-soluble Calcure AC500 and Tanalith.
Creosote oil is a product of coal tar and consists in the majority (50%) of polycyclic aromatic hydrocarbons and to a lesser extent (~ 0.3%) of phenolic compounds. The remainder consists of higher molecular weight compounds, which are found in heavy fractions of crude oil.
Water-soluble preservatives used in recent years as a more ecological approach, consist of copper, boric acid, and organic biocides.
The impregnation process is the same for both approaches.
The process of timber impregnation is based on the following steps:
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The wooden poles are subjected to a vacuum to remove air from the pores of the wood.
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Creosote oil, which is stored in a closed tank, is pumped under pressure, through pumps, to the impregnation chamber of the wooden poles, so that the material penetrates deep into the pores of the wood.
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Vacuum the unabsorbed material to evacuate it as a stock.
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The wooden poles remain in the cylinder under pressure, so that the material is absorbed to the greatest possible depth of the wood.
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After their impregnation, the poles are transported by rail to a closed, sealed storage area, in order to be drained – cured in atmospheric conditions.
With this process, impregnated wood of excellent quality that meets the modern needs for use in different environments and production structures is commercially available from ELVIEX OE.
The retention of the biocidal product depends on the type of timber impregnated.
