<P>First, when the climate change is large, resulting in bamboo wood floor moisture content is too high or too low, bamboo flooring shrinkage or swelling, the film can not keep up with the flexibility of the floor swelling shrinkage or dry shrinkage, leaving the film cracking.</P>
<P>Second, the bamboo flooring by the sun exposure or long-term wind, the floor shrinkage phenomenon, the film can not keep up the floor elastic shrinkage, leaving the film wrinkle cracking.</P>
<P>Third, the damp bamboo flooring expansion, the moisture content of the floor after moisture increases, the floor appears wet swelling phenomenon, the flexibility of the paint can not match the expansion of the wooden floor, leaving the film cracking. However, the quality of products, the film's adhesion, flexibility, wear resistance are not guaranteed.</P>