Plastic lens polishes are made for plastic, polycarbonate, high index and mid-index lens materials. Polishes produce different results on different lens types at different production volumes. A description and specifications for each PSI polish is provided to help you make your polish selection. If you have any questions or need help, please don’t hesitate to contact your Technical Sales Representative or PSI Customer Service Department at 800-237-8154 or 727-376-7900.