NAS® is a stiff, amorphous styrene methyl methacrylate (SMMA) copolymer for demanding applications requiring excellent transparency such as water tanks, displays, food containers or boxes. It features an outstanding water-clear appearance, an extreme low haze as well as a good thermal and chemical resistance. The optical properties of NAS® are on a similar level as PMMA, while NAS® has a density and processing advantage compared to acrylic solutions.