What is ASA Filament? When to Stop Using PETG for Outdoor Prints
If you’ve been printing in PETG and it’s working great, you might wonder why anyone would bother switching. The answer is simple: put a PETG part in direct sunlight for a few months and see what happens. PETG doesn’t handle UV exposure well. It yellows, gets brittle, and eventually fails. For anything that lives outside — a garden fixture, a car mount, a mailbox bracket — you need something built for it. That’s ASA. ...