Brushing wood with tung oil is not a substitute for preservative wood. The principle is equivalent to the anti-corrosion wood which is soaked and coated with preservatives. The tung oil which acts as a protective layer on the wooden surface will lose its anti-corrosion due to the passage of time and the cracking of the wood itself. It needs frequent maintenance, generally every 2~3 years. Perform a comprehensive maintenance brush.
The deformation and cracking of wood is related to the water content. The reason is that wood is a natural material, and cracking is caused by various reasons such as water content and wooden rings. It is a normal phenomenon. As a kind of anti-corrosion material, the preservative is designed to prevent corrosion. The wood can be placed in the harsh environment outside to resist the erosion of termites, the growth and decay of spore fungi, the lodging of aquatic organisms and the reproduction of other insects. Use time in a natural environment. Current antiseptics only have antiseptic properties and do not impede moisture ingress, so the wood will still crack.
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