Preservation by means of immersion

> Immersion

Immersion involves placing the timber in the wood-protection product for a certain time. As the product only penetrates the timber to a limited extent, we apply this technique mainly to timber that will not be exposed to wind and weather.

We have an immersion unit approved by ATG. This gives the timber preventive protection against:

  • Blue mould

  • Wood-destroying fungi

  • Larvae of wood-destroying insects.


The immersion has a low environmental impact. When it is green, the timber is treated with Sarpeco 9+, a micro-emulsion.

Immersion certificate and certification

Our treatment unit is approved by BUtgb (Sarpeco 9+), and our products are approved by ATG. On request, we can supply an immersion certificate with the treated timber.

If you need timber for an application in use classes 2, 3, 4 (or 4SP), we recommend preserving the timber by means of impregnation under vacuum pressure.

Read more about impregnation under pressure

The timber sections that are to be sawn or milled after immersion must be post-treated with a product that also meets the above requirements.

Quality and tailored advice

We can guarantee the highest quality and tailored advice based on our know-how and product knowledge. We create tailored solutions for the specialised timber trade with precision and passion. Our extensive range of machinery can be made available to you for your own timber machining.

Our team is at your service.