Can the piston wear-resistant coating still be used when it is worn?

The piston wear-resistant coating is worn and can be used. According to relevant public information, it can be used without piston wear-resistant coating, but it would be better if there is a coating. Piston wear-resistant coating is a solid lubricating coating with low friction coefficient, which is a high-temperature wear-resistant coating based on epoxy resin and molybdenum disulfide to prolong the service life of parts.