Buying Guide

Best Value ASA Filament Right Now

The best UV-resistant filament for outdoor prints, backed by real-time price tracking across 5,000+ products. Updated daily.

Last updated: March 2026

ASA is what you print when the part lives outside. It's basically ABS with UV stabilizers baked in, so it won't yellow, crack, or become brittle from sun exposure. Same print requirements as ABS (enclosed printer, high bed temp), same acetone smoothing capability, but with the durability to survive years outdoors without degrading.

ASA is a niche material compared to PLA or PETG, so you won't find as many brands competing on price. That said, budget ASA options have gotten significantly more affordable over the past year, and the quality gap between budget and premium has narrowed. The main differentiator at the premium end is long-term UV stability - if your part needs to last 5+ years in direct sun, that matters.

SpoolHound tracks live ASA prices across these retailers:

Elegoo SUNLU 3DJake Overture Amazon

Current ASA Deals

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01 / Budget ASA

Affordable ASA for outdoor projects

~$15-20/kg

For garden brackets, outdoor sensor housings, or anything that needs UV resistance without breaking the bank, budget ASA from Elegoo and SUNLU does the job. Both brands print similarly to their ABS at the same temperatures, and the community reports good results for multi-year outdoor exposure.

Elegoo ASA

From $16.99/kg

USA, UK, DE, FR + more

SUNLU ASA

From $15.99/kg

USA, EU, CA

Community tip: ASA prints with the same settings as ABS. If you already have a working ABS profile, just load ASA and go - no tuning needed in most cases.

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02 / Premium ASA

Maximum UV stability and consistency

~$25-35/kg

Extrudr and FormFutura are the names that come up most when people discuss premium ASA in the community. Both are European manufacturers with tight quality control and well-documented UV stabilizer formulations. If your outdoor parts need to survive harsh sun for years without color shift or embrittlement, these are the go-to brands.

Extrudr ASA

From $28.00/kg

UK, DE, FR via 3DJake

FormFutura ASA

From $26.00/kg

UK, DE, FR via 3DJake

Worth knowing: Premium ASA is one of those materials where the brand genuinely matters for long-term performance. The UV stabilizer package differs between manufacturers, and budget brands sometimes skimp on it. For a mailbox that sits in Arizona sun, spend the extra money.

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03 / ASA for Outdoor Use

Built to survive sun, rain, and temperature swings

~$15-35/kg

Every ASA filament is designed for outdoor use, but some applications are more demanding than others. For parts that face constant direct sunlight in hot climates, you want to maximize your chances: use a premium brand, print with good layer adhesion settings (higher temps, slower speeds), and consider painting or coating the part for additional protection.

For moderate outdoor use - covered patios, under-eave mounting, shaded areas - budget ASA is perfectly fine and will outlast any PLA or PETG by years.

Elegoo ASA

From $16.99/kg

Good for moderate outdoor use

Extrudr ASA

From $28.00/kg

Best for extreme sun exposure

Community tip: For outdoor enclosures and housings, print ASA with 4+ perimeters and 40%+ infill. Water doesn't damage ASA, but it can seep through thin walls via layer line gaps. More perimeters = better weather sealing.

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How SpoolHound tracks prices

SpoolHound aggregates filament prices from multiple retailers daily. We don't test filament or make subjective quality claims - we track what things cost and surface what the community says about them.

Prices shown are pulled directly from retailer feeds and updated every 24 hours. Market comparison percentages show how each product compares to the median price for its material type. This helps you spot genuinely good deals vs. inflated "sale" pricing.

Frequently Asked Questions

What is ASA filament used for?

ASA is the go-to filament for outdoor prints. It's essentially ABS with UV resistance built in, so it won't yellow or become brittle from sun exposure. Common uses include garden fixtures, car parts, outdoor enclosures, drone components, and anything that lives outside permanently.

Is ASA harder to print than ABS?

ASA prints very similarly to ABS - you need an enclosure, similar hotend temps (240-260C), and a heated bed at 90-110C. Some users report ASA warps slightly less than ABS, but the difference is minor. If you can print ABS, you can print ASA with the same settings.

How much does ASA filament cost?

Budget ASA from brands like Elegoo or SUNLU runs $15-20/kg. Premium ASA from Extrudr or FormFutura costs $25-35/kg. Check the live ASA prices for the current lowest prices in your region.

Can I use ASA instead of ABS?

Yes, ASA is a drop-in replacement for ABS in most cases. It has similar mechanical properties, prints at the same temperatures, and can be acetone smoothed just like ABS. The main advantage of ASA over ABS is UV resistance - if your part will see sunlight, use ASA. The only reason to choose ABS over ASA is price.

Which ASA brand is best for outdoor use?

For long-term outdoor exposure, the community favors Extrudr and FormFutura ASA for their consistent UV stabilizer content. Budget ASA from Elegoo and SUNLU works fine for outdoor use too, but some users report slightly faster color fading over multi-year exposure compared to premium brands.

References

Prusa Knowledge Base — ASA. https://help.prusa3d.com/article/asa_2067
Bambu Lab Wiki — Beginner Filament Guide. https://wiki.bambulab.com/en/filament/beginner