Wood preservative liquid is formulated to prevent penetration of wood pests such as borer cockroaches, termite, bedbugs and etc. It also makes the wood resistant to the climate factors. Preservative liquid penetrates to the texture of wood so wood pests can’t penetrate in wood to damage it. The liquid is oil based, so makes the wood waterproof and give it a good looking color. This liquid is also non-toxic and safe.