ASA Filament 1.75mm Bundle - UV and Heat Resistant 21kg Bundle

In this review the ASA Filament 1.75mm Bundle is judged as a practical choice for makers and professionals who need durable outdoor prints; the single biggest reason to buy is its weather and UV resistance that preserves strength and color outdoors. The kit reviewed includes 21kg (4.4lbs) of black and white filament and is aimed at functional parts exposed to sun, rain, and occasional chemical contact. For those who need parts that hold up under sun and heat, this filament is worth testing for regular outdoor use.

Key Features

• Extreme weather and UV protection: The filament is formulated to resist UV and weathering about ten times better than standard ABS, which helps prints retain mechanical strength and color outdoors.
• High heat resistance: Rated to withstand temperatures up to 100 C (212F), making it suitable for parts that may see prolonged heat exposure.
• Improved printability: A CCD diameter measuring and self-adaptive control system holds tolerances at 1.75 +/- 0.02 mm, which reduces feeding issues and improves consistency during long prints.
• Matte finish: Final parts show a smooth matte surface that looks professional and hides small layer artifacts compared with glossy alternatives.
• Moisture-free packaging: Each spool is vacuum sealed after a 24-hour drying process with desiccant included to minimize moisture-related printing problems.
• Lifetime technical support: The brand offers ongoing technical help and a 12-hour response commitment for customer issues.

Who It's For

The ASA bundle is best for hobbyists, small shops, and engineers who need durable outdoor parts such as junction boxes, grilles, brackets, or replacement elements that will see sun, rain, or salt air. Its higher heat and chemical resistance also suits functional pieces that may be cleaned with alcohol or exposed to warm conditions.

It is less appropriate for those who need flexible or highly elastic materials, or for absolute beginners unwilling to tune print settings; a minority of user feedback mentions mixed results on brittleness and layer adhesion, so users who cannot or will not experiment with temperatures and bed adhesion may prefer a different filament.

Pros & Cons

Pros

• Outstanding outdoor durability and UV resistance for long-lasting external parts.
• High heat and chemical resistance that holds up to cleaning agents and warm environments.
• Consistent diameter tolerance and vacuum-sealed packaging improve print reliability and reduce clogging.
• Matte finish gives printed parts a professional appearance and hides minor surface flaws.

Cons

• Some users reported mixed filament quality with occasional brittleness or adhesion problems, so tuning and test prints may be required.
• Not suitable when flexible or highly impact-absorbing materials are required for a project.

Specifications

Material	ASA
Diameter	1.75 +/- 0.02 mm
Weight	21 kg (4.4 lbs) total, black and white bundle
Heat resistance	Up to 100 C (212F)
Finish	Matte
Packaging	24-hour dried, vacuum sealed with desiccant
Compatibility	Most FDM printers including MK3, Ender 3, Monoprice, FlashForge

Our Verdict

The ASA Filament 1.75mm Bundle is a solid value for makers who need outdoor-ready prints that resist UV, weather, and heat. It delivers consistent diameter control, a pleasing matte finish, and protective packaging that reduces moisture issues; users should expect to do initial tuning for best layer adhesion, but for outdoor functional parts this bundle represents good durability and long-term value.

Frequently Asked Questions

Will this filament warp on large outdoor parts?
Proper bed adhesion and tuned cooling reduce warping; many users report zero warping on well-calibrated printers, though results can vary by setup.

Can printed parts be cleaned with alcohol?
Yes, the filament shows chemical resistance to alcohol and common cleaning agents, making parts easy to maintain.

How should I store the filament between prints?
Return spools to the vacuum bag with desiccant after use to keep the filament moisture-free and preserve printability.