Description: Torwell ASA (Acrylonitirle Styrene Acrylate) is a UV-resistant, famously weatherable polymer. ASA is an excellent choice for printing production or prototype parts which has a low-gloss matte finish which makes it the perfect filament for technical-looking prints. This material is more durable than ABS, has lower gloss, and has the added benefit of being UV-stable for exterior/outdoor applications.