Silver Mirror Polycarbonate Plastic Panels. Standard Panel Sizes can be ordered with and without holes, all holes will be 5mm diameter and at 40mm centres (can offer different if required), but we offer bespoke sizes to order. Being polycarbonate these mirrors are ideal for use within Hospitals, Prisons, Schools, Care homes, detention Centres and Public Buildings. Polycarbonate mirror is 200 times Stronger than glass. We also stock various other standard panel sizes and offer a cut to size service so we can quote for the panel size you require, thus causing less waste and only charging you for the material supplied. Our material is all cut from new stock and 99% of the Acrylic we supply will be Cast, manufactured by Perspex® and supplied with the Perspex® protective coating on both sides.