Pressure impregnation

Pressure impregnation involves protecting the wood against external agents (insects, fungi or bacteria) using specialised chemicals. The process involves forcing the impregnant into the sub-microscopic spaces of the wood. This allows the agent to penetrate deeply into the impregnated material, so we can be sure that the product has been properly protected.

There is also another method of protecting wood on the wood market: immersion impregnation. However, this does not guarantee such thorough penetration, so the wood is only protected on the surface.

For the pressure impregnation process to work properly, several aspects need to be taken care of:

  • proper preparation of the wood – depending on the use of the product, different humidity of the impregnated elements is recommended;
  • the correct bathing time;
  • the correct pressure under which the impregnant is injected (approx. 1 Mpa = 10 atm.);
  • the correct concentration of the impregnating agent.

Observance of the above rules allows adequate protection of the wood and guarantees that the impregnated products will not degrade and will serve for many years. ZPD EUREX makes every effort to ensure that all the above aspects are strictly adhered to.

It is also important that the chemical we use thoroughly penetrates the impregnated goods and does not wash out under the influence of atmospheric factors. For this reason, in order to ensure the quality of our impregnation, we use the world-class, chrome-free agent Obermeier Korasit KS2.