3DXMAX® ASA (Acrylonitirle Styrene Acrylate Alloy) is a highly UV-resistant weatherable polymer.  ASA's UV-stability makes it an ideal material for outdoor applications that will experience intense exposure to the sun and weather.  ASA's exceptional mechanical and thermal properties - coupled with excellent UV-stability - is why this resin is used the Auto, Marine, and RV industries for exterior applications such as mirror housings, cowl covers, radiator grills, and sensor housings.