Stone reached the life and not eradicate the redo. Lacquer coating aging is starting from the coating surface, generally 7-8 years surface coating will appear a certain degree of aging, more dirt deposition, affecting the overall decoration.
At that time, only need to clean the coating surface to cover a layer of paint can prolong the service life of the coating. This is like good leather, we want to wear a few years to regular maintenance, such as one year maintenance time. Lacquer is long-term exposure in the wind blowing, rain and sunshine. We want to want to decorative effects last longer, but also to the "maintenance".