Covers essential information and advice relating to regulations and best working practices in the workplace   Material Options Explained Below is a more detailed description of the materials this particular safety sign is available in. Helping you decide which sign option is most suitable for your application. Rigid Plastic: Lightweight, gloss white PVC with high impact strength. Suitable for both internal and external safety signs. Easily drilled for wall fixing. Self-Adhesive Vinyl: A high gloss, flexible PVC vinyl with self-adhesive backing. Suitable for applying to most smooth, dry and clean surfaces. Ideally suited for internal signs. Photoluminescent Rigid Plastic: 1.2mm Rigid PVC with photoluminescent (glow in the dark) pigmentation. Afterglow properties exceed PSPA Class C grade, as measured to DIN 67510 , provides razor sharp definition even in blackout conditions. Photoluminescent Self Adhesive: Flexible PVC with photoluminescent (glow in the dark) pigmentation. Afte