PLYWOOD, METAL, COREX, ELECTRICAL SIGNS & MORE Sometimes plywood is the material of choice, but not always. You might want the water and weather resistance of Sintra, a solid core plastic material. Or, you might choose choroplast (sometimes called Corex), a corrugated plastic material. Sometimes the best material is metal, and we have several metal sign options for you. Metal signs may cost a little more but they offer the superior baked enamel surface for longevity... Need a new sign-face for your electrical, back-lit sign? We can help. 1111 HOME | GRAPHIC DESIGN | BANNERS | PLYWOOD | VEHICLES | SCREEN PRINTING | A-BOARDS | SITE SIGNS | MAGNETICS DIGITAL PRINTING | SEND A FILE | CONTACT US