This new Aluminum Composite Material is approved by NCHRP-350, FHWA WZ249 and Many State DOT's. Is made of two .021 aluminum sheets bonded to a thermoplastic core, is perfect for your work zone signage. It can also be used in the place of .040 aluminum on your Custom Graphics signage. The sign is only 1.1 lbs. per square foot which makes it not only a durable, weather resistant product, but also a lightweight product. This material is a terrific alternative for MDO or rollup signs and can be even be used for sign mounted on Type III barricades. Call For Custom Signs.