Trykimprægnering

Trykimprægnering, also known as pressure impregnation or vacuum-pressure impregnation, is a process used to enhance the durability and resistance of materials, particularly wood. This method involves placing the material in a sealed cylinder, creating a vacuum to remove air and moisture from within the material's cellular structure. Following the vacuum phase, a preserving liquid, often containing chemicals like copper compounds or azoles, is introduced into the cylinder under high pressure. This pressure forces the preservative deep into the material, saturating the cells and providing protection against decay, fungi, and insects.

The effectiveness of trykimprægnering lies in its ability to achieve deep penetration of the preservative, which is crucial for long-term protection. Unlike surface treatments, this process ensures that the entire cross-section of the material is treated, offering superior resistance to environmental factors. Trykimprægnering is widely used for wood products intended for outdoor applications, such as garden furniture, decking, fences, and construction timber, as it significantly extends their service life and reduces the need for frequent replacement or maintenance. The specific type of preservative used can be tailored to the intended application and the level of protection required.