kyllästämisvaiheessa

Kyllästämisvaiheessa refers to the impregnation stage in wood preservation. This process is crucial for protecting timber from decay, fungi, and insect attacks, thereby extending its service life. The primary goal is to introduce a preservative chemical deep into the wood structure, ensuring comprehensive protection.

There are several methods employed during the kyllästämisvaiheessa, with pressure treatment being the most common and effective. In this technique, wood is placed in a sealed cylinder, and the air is removed, creating a vacuum. This partial vacuum helps to open up the wood cells. Then, the preservative solution is introduced into the cylinder, and pressure is applied. This forces the preservative deep into the wood's cellular structure. Once the desired level of penetration and retention is achieved, the pressure is released, and any excess preservative is removed.

Other methods include vacuum-impregnation and dipping, although these are generally less effective for deep penetration compared to pressure treatment. The choice of method often depends on the type of wood, the intended application, and the required level of protection. The effectiveness of the kyllästämisvaiheessa is measured by the depth of penetration and the amount of preservative retained within the wood, which are critical factors for long-term durability.