ABS gets the reputation; ASA does the work. It prints like ABS, but the acrylonitrile styrene acrylate chemistry is UV-stable, which is the property that actually matters for anything that lives outside.
Black ABS in the sun chalks, fades, and embrittles within seasons. ASA holds color and strength. That's why it's our default for deck hardware, brackets, covers, housings, and the mast junction boxes we sell: salt spray and sunlight are its home environment.
It costs slightly more per gram and needs a hot, draft-free print environment, which is exactly the kind of process knowledge you're renting when you order a part instead of fighting with it yourself.
