How it work?

About

This is your About Page. It's a great opportunity to give a full background on who you are, what you do and what your website has to offer. Double click on the text box to start editing your content and make sure to add all the relevant details you want to share with site visitors.

Mission

We treat wood under vacuum-pressure in an autoclave using TANALITH E 3475 solution. This makes timber super-resistant to moisture, weather, fungi, insects, and UV rays – perfect for high-risk uses like poles, bridges, terraces, fences, and beams.

Quick 5-Step Process:

Prep the wood Weigh it, check moisture, secure on the conveyor.
Initial vacuum (5–120 min) Pump out air from wood cells (up to 800 mbar).
Flood with solution Fill the autoclave while vacuum holds.
Apply pressure (5–120 min, up to 12 bar) Force solution deep inside – adjusted to use class (1–5, from indoor dry to marine).
Final vacuum & drain (5–120 min) Remove excess solution; wood is ready!

Result: Long-lasting, eco-safe treated wood for houses, gardens, and outdoor structures.

Vision

Why This Matters for You (Homepage-Summary)

We treat wood to the correct Use Class so it lasts decades without rotting, even in tough conditions. Whether it's a garden fence, a post in the ground , or a coastal pier – we match the treatment depth and strength to the real-world risk.

Safe. Strong. Built to Last.

2aafc376-31c9-490e-9f68-78229fd41a80.jfif

About the process.

What is Wooden Pole Impregnation?

Wooden poles (like electricity transmission poles, telephone poles, fence posts, or marine piles) are often made from trees such as pine, spruce or fir. Freshly cut wood naturally contains a lot of water (sap) and is full of starch and sugars. This makes it very attractive to fungi (rot fungi, insects (termites, beetles), and marine borers (in seawater).

Without protection, a wooden pole in the ground or in water will rot and collapse in just a few years.

To make the pole last 15–20 years or more, we force special preservative chemicals deep into the wood. This process is called wood impregnation or pressure treatment.

This is how almost all utility poles around the world are treated today.

Preparation of the poles
- Trees are debarked (bark removed) and usually in the forest or at the mill.
- Poles are cut to length and often peeled again to remove the last bits of bark and cambium.
- They are stacked in the open air for weeks or months to air-dry, or put into big drying kilns. The goal is to bring the moisture content down to around 20–30%. If the wood is too wet, the preservative cannot penetrate well.

Loading into the pressure cylinder
- The dried poles are loaded onto small rail carts and rolled into a huge horizontal steel cylinder ( 2–3 metres in diameter and up to 50 metres long).
- The door is closed and sealed.

Initial vacuum
- All the air is pumped out of the cylinder, creating a strong vacuum (−85 to −95 kPa) for 30–60 minutes.
- This vacuum pulls air out of the billions of tiny cells inside the wood. Think of the wood as a bundle of drinking straws: the vacuum removes the air that is trapped inside those straws.

Filling with preservative
- While still under vacuum, the cylinder is filled with hot preservative liquid (usually 60–90 °C).
- Common preservatives today are:
  - CCA (chromated copper arsenate) – still used in many countries for poles
  - ACQ (alkaline copper quaternary)
  - Copper azole (CA)
  - Creosote (coal-tar oil, very common for railway sleepers and marine piles)
- The wood is now completely surrounded by preservative, but almost none has entered the cells yet because there is still vacuum.

Pressure phase
- Hydraulic pumps now apply very high pressure, typically 10–14 bar (about 140–200 psi) for 2–8 hours, depending on wood species and pole diameter.
- This enormous pressure literally forces the preservative deep into the wood cells. In pine, the preservative can penetrate 50–100 mm or even completely through the pole in the sapwood (the lighter outer part of the tree). The heartwood (darker centre) is usually much more difficult to penetrate, so only the sapwood is fully treated – but that is enough because insects and fungi always attack from the outside.

Final vacuum (only in full-cell process)
- After the pressure period, the preservative is pumped back to storage tanks.
- A second, shorter vacuum is pulled to suck excess preservative from the surface of the wood. This reduces dripping later and gives a cleaner appearance.

Fixation / drying period
- Some preservatives (especially water-based ones like CCA, ACQ, copper azole) need time to chemically “fix” or bind inside the wood so they don’t leach out.
- The poles are therefore stored under cover for a few days up to several weeks until the chemicals are fixed.

Final inspection and shipping
- Each pole is checked for penetration depth (a small core is bored out and sprayed with a colour indicator chemical).
- The bore hole is plugged, the pole is stamped with treatment details, and it is ready for installation.