Alcan has expanded its Black over White line of Dibond with a 4 x 8-ft (1.2 x 2.4-m) standard sheet size. Dibond consists of two pre-painted sheets of 0.012-in. (0.30-mm) aluminum bonded to a polyethylene core. Black over White Dibond can be screen and digitally printed, and it can be used for applications such as signage, exhibits, and displays. Black over White is masked on both sides, which Alcan says makes the substrate extremely durable in outdoor applications. Alcan Composites USA Inc., 55 W. Port Plaza, Ste. 625, St. Louis, MO 63146, 800-626-3365, Web: www.alcancompositesusa.com.