Disadvantages of density board. (HDF,MDF,)
1. The biggest disadvantage of density board is that it is not moisture-proof and will swell when seeing water. When using density board to do skirting board, door cover board, window sill board should pay attention to six sides are painted, so as not to deformation.
2, density board water expansion rate is large, large deformation, long time bearing deformation than homogeneous solid wood particle board. Although the moisture resistance of the density board is poor, the surface of the density board is smooth, the material is fine, the performance is stable, the edge is firm, and it is easy to shape, avoiding problems such as decay and insect decay. It is superior to particleboard in bending strength and impact strength, and its decorative surface is better than that of solid wood furniture.
3. The nail holding force of density board is poor. Because the fiber of density board is very broken, the nail holding force of density board is much worse than that of solid board and particleboard.
