Why balsam fir wood carving should be painted

Anti-corrosion. According to query 360 can be known, gas natural volatilization, molecular size is smaller than the paint molecular gap, so paint will not cover the camphor wood aroma. The unique smell of camphor wood can prevent insects, but can not prevent water, can not prevent expansion and contraction. It is recommended to brush water-based wood paint, environmental protection effect is much better.