Decent’s ASA line: glass-fiber ASA-GF in a range of colors, plus carbon-fiber ASA-CF in black. UV-stable, stiff, and flatter-printing than plain ASA. Enclosure required, hardened nozzle required (fiber fill is abrasive). Start around 250–270°C nozzle / 100–110°C bed and dry the spool if it has been open.
