The PMMA abrasive resistant coating with and ZrO and ZrO-SiO2 has been prepared by Sol-Gel process.The result shows that the sol solution obtained at optimal conditions is stable
the abrasive resistane of PMMA is improved from 3g to 10g and hardness from HB to 3~4H. So
the coating with zirconium has good abrasive resistance for PMMA.