Colorless solvent-based wood preservative for exterior surfaces such as windows, exterior doors, garden furniture, pergolas, fences, etc. Easily and deeply penetrates the wood, effectively protecting it from insects such as beetles and termites, as well as from fungi that are responsible for discoloration and wood decay or the formation of blue stains and mold according to European standards EN 113, EN 73, EN 84, EN 152, and EN 46, EN 118.