FLASHFORGE ASA Filament 1.75mm (Anti-UV) for FDM Printers

What this filament is for

FLASHFORGE ASA filament is an FDM 3D printing material aimed at parts that need to cope with the outside world a bit better than typical “standard” plastics. On paper, it blends UV resistance and water resistance with mechanical strength and dimensional stability. That’s a useful combination if you’re prototyping functional items you might actually leave outdoors (or near windows where sunlight does its thing), rather than treating everything as purely display-only.

There’s also a strong temperature-angle here. The listing says it can endure up to 100˚C, and that it has high toughness and impact resistance. In practical terms, that puts it in the “functional, not fragile” camp—helpful for covers, housings, brackets and similar everyday parts.

Key takeaways before you buy

This is ASA in 1.75mm form, with an emphasis on accuracy and print consistency. The brand highlights dimensional accuracy of +/-0.02 mm using a self-adapting CCD diameter measuring system, which should make feeding more predictable. It also mentions a distinctive sparkle finish, so your parts may look more lively than the usual matte filament.

That said, it’s not a filament you should treat like a set-and-forget commodity. The entry specifically warns that ASA can be sensitive to moisture, so you’ll want to re-seal it quickly after use. If you’re regularly printing in a damp environment and don’t already have decent storage habits, this could become more hassle than it needs.

Where it really stands out

The most convincing part of this product is the mix of “outdoor capable” materials thinking and print reliability.

• UV and water resistance focus: If your use case includes sunlight exposure or damp conditions, ASA is often chosen for those reasons, and this filament is positioned exactly that way.
• Heat and toughness claims: The listing claims up to 100˚C endurance, alongside toughness and impact resistance—exactly what you’d want for functional parts that might get knocks.
• Dimensional stability and accuracy: +/-0.02 mm tolerances are a big deal when you care about surface finish and consistent extrusion, particularly with finer settings.
• Print smoothness: It’s marketed as clog-free and bubble-free, with a “clog-free patent” for smooth, stable printing.

One small limitation to keep in mind: ASA can be very good, but it still sits in the “materials choice” category rather than being a magic fix for weak designs. If the geometry is overly thin or poorly supported, you won’t be saved by the filament alone.

What you’ll notice in everyday printing

If you’re switching from a more forgiving filament, this one is likely to feel more “steady” when your printer is dialled in properly—especially if your printer is sensitive to diameter consistency. The listing also stresses easy feeding, which can matter in real life when you’re swapping spools, restarting after interruptions, or printing longer runs.

A micro example: imagine printing a small outdoor cable clip or a functional bracket you’ll attach near a porch or garden shed. With UV and water resistance in the material description, you’re not just making a prototype—you’re making something you can realistically install. And if the part needs to handle bumps, the stated toughness/impact resistance is the reason you’d lean this way.

Also note the packaging guidance: the filament is vacuum-packed to protect it from moisture after 24 hours of complete drying. The important bit is that the listing tells you to put the nylon bag back on promptly after use, because moisture sensitivity can affect print results.

Tech specs

• Name: FLASHFORGE ASA Filament 1.75mm
• Type: 3D Printer Filament (ASA)
• Format: 1.75mm diameter
• Material: Acrylonitrile Styrene Acrylate (ASA)
• Colour: Black
• Dimensional Accuracy: +/-0.02 mm
• Temperature resistance: up to 100˚C

Is it worth it?

Worth considering if you want an ASA filament that’s geared toward outdoor/UV-related use, and you value print consistency (the +/-0.02 mm tolerance and clog-free positioning are meant to help there). It also makes sense if you’re printing functional parts and care about dimensional stability and tougher behaviour.

It may not suit you if you’re looking for the simplest, most moisture-insensitive filament experience. The entry explicitly flags moisture sensitivity, so you’ll need to store it carefully and re-seal it quickly after use.

You should buy it if your projects are closer to real-world use—covers, brackets, housings and other functional items—where UV exposure, water exposure or moderate heat could be a factor. You may want to skip it if your printing is purely decorative and you don’t plan to push the material’s “outside” strengths.

Mini FAQ

Does this filament work with most FDM printers?

The listing says it works seamlessly with most FDM 3D printers, which suggests broad compatibility in practice, though it’s still wise to check that your printer’s extruder setup is happy with 1.75mm ASA.

Is moisture a problem with ASA?

Yes, the entry specifically mentions sensitivity to moisture and instructs you to put the nylon bag back on promptly after use to maintain printing results.

How accurate is the filament diameter?

It’s claimed to be 1.75 with tolerances of +/-0.02 mm, supported by a self-adapting CCD diameter measuring system.

What temperature can it handle?

The product description states it can endure up to 100˚C.

What does the anti-UV and weather resistance mean for prints?

On paper, it’s aimed at prototyping and functional parts for outdoor applications where UV and water exposure matter more than with basic materials.