Acrylonitrile styrene acrylate (ASA) is a tough and rigid thermoplastic which was developed as a substitute to acrylonitrile butadiene styrene. ASA has a good thermal stability, is resistant to weather (UV), aging and chemicals (except concentrated acids,esters, ketones...). All these properties make ASA ideal for outdoor and automotive applications. Other applications of ASA include styrene sheets, safety helmets, sports & leisure items, etc.