What are the regulations on the physical properties of solid wood flooring

The physical performance index of solid wood flooring is the intrinsic quality of the floor, which mainly has the following two contents:

1. Moisture content: It is a key indicator that affects the use of solid wood flooring. Too high or too low moisture content will cause the floor to expand or contract, resulting in floor arching, paint cracks and peeling.

2. Surface paint performance: including the wear resistance of the paint film, the adhesion between the paint film and the wood, and the hardness of the paint film.

1. The surface wear resistance index refers to the ability of the surface paint film of the product to withstand the surface abrasion loss and retain the paint film after the grinding wheel made of 185 abrasive cloth is subjected to relative friction of 100 revolutions on the specified abrasion testing machine.

2. The adhesion of the paint film mainly checks the adhesion between the paint film and the wood. The resistance of the coating to detachment from the substrate is measured by the cutting layer of the right-angled grid pattern above the sharp blade when it penetrates the substrate. The better the bond between the paint film and the wood surface, the stronger the ability to resist the damage of the paint film caused by moisture absorption, expansion or dry shrinkage of the floor.

3. The hardness of the paint film reflects the ability of the floor surface to resist external pressure and scratch resistance.