ASA

ASA filament is well known for its UV stability and outdoor weather resistance, temperature resistance, chemical resistance, and strong mechanical properties. It has a similar chemical structure to ABS; therefore, it is often referred to as enhanced ABS. ASA typically has a low glow finish compared to other materials. As ASA can be as tricky as ABS for 3D printing, some manufacturers have developed a slightly weaker version of ASA (ASA 275) which features the same UV stability and chemical resistance, but in a tradeoff for mechanical properties. ASA 275 has become widely popular for its ease of print.

Printability of ASA filament

ASA can be as tricky as ABS for 3D printing; a heated chamber is recommended as well as a suitable adhesive. The hotbed temperature ranges from 90°C to 130°C depending on the manufacturer's recommendations. The extruder is typically around 245°C, with a printing speed of up to 90mm/s. Cooling is not recommended as it would improve the already present warping effect of ASA (with ASA 275, cooling is recommended). 

ASA mechanical and thermal properties

ASA's Tg is typically around 100°C, with a typical HDT-A of 90°C. If printed correctly, ASA exhibits strong mechanical properties and is the perfect candidate for any outdoor use. Printed objects from ASA have a hard surface and feature superior toughness compared to ABS which is stiffer. 

Tips and other notable benefits

ASA is mildly hygroscopic; drying may be necessary before printing.

Browse all ASA filaments in stock in our warehouse in Senec, Slovakia. For comparison, see also ABS and PETG.