Wood Impregnation
Wood impregnation is a durable method for protecting wood against biological degradation over the long term. At AC Timber Trading, we carry out this treatment using vacuum‑pressure impregnation, allowing the preservative to penetrate deeply into the wood and significantly extend its lifespan.
How does wood impregnation work?
Wood impregnation at AC Timber Trading is performed through a vacuum‑pressure process in which a specialised wood preservative is driven deep into the material.
Depending on the wood species and the intended application, the product penetrates:
- fully into the core, or
- several millimetres deep.
This treatment provides strong and long‑lasting protection, even in demanding conditions or heavily exposed exterior applications.
Protection through wood impregnation
Impregnated wood offers improved resistance to:
- wood‑decaying fungi
- larvae of wood‑boring insects
- soft rot
This makes it highly suitable for constructions where durability and minimal maintenance are essential.
Use classes after impregnation
The correct use class depends on exposure to moisture and weather conditions:
- Class 2: wood without ground contact, which may become temporarily moist
- Class 3: wood without ground contact, but exposed to rain and condensation
- Class 4: wood in permanent ground or freshwater contact
- Class 4 SP: for extra demanding conditions, offering enhanced lifespan and maximum protection
For every project, we advise the most suitable class based on risks and application.
Post‑treatment after cutting or milling
Does the treated wood still need to be sawn, milled or cut to size? Always apply a post‑treatment product to the exposed ends to maintain full protection. Our specialists are happy to provide tailored advice.
Quality and certification
AC Timber Trading supplies impregnated wood with an impregnation certificate upon request. This ensures:
- assurance for professional buyers
- correct documentation for sale or resale
- full transparency regarding the applied treatment
Our processes meet the highest standards in durability, performance and traceability.