The preservative wood logs may turn black after a period of time. Many customers think that they bought fake preservative wood here. In fact, it is not. Many real preservative wood will turn black. Why does preservative wood turn black? High moisture content will cause many growth of old rot fungi leading to blackening of preservative wood. Therefore, it is necessary to reduce the moisture content of the anticorrosive wood. The following small series will analyze how to do it: The first method: polish the anticorrosive wood, and then put it in a place where the sun can shine, so that it can fully evaporate moisture naturally (be sure to polish first . This method takes a long time to be carried out under sufficient sunlight. The second method: baking, you must have the equipment, and master it. In addition to the above methods, you can also use radiata pine, black pine, red pine After the phenol alcohol extract of Shuwei bark is treated with wood, the water repellency is enhanced because the fatty acids and hydroxy fatty acids are placed on the surface of the wood. After treatment with chromium trioxide solution with a concentration of 5%, the wood resists Corrosion, good weather resistance, reduced moisture absorption, good effect of giant water.