The wood impregnated with Celcure has been treated in a wood impregnation plant using the vacuum impregnation method. Celcure is an aqueous wood impregnating agent that contains copper compounds and organic biocides. Chemical components infiltrate into the wood’s structure and are no longer easy to remove. Celcure does not contain chromium or arsenic compounds. Wood impregnated with Celcure has been protected for a long time from fungi, insects and termites in contact with and in the absence of soil.