SUNLU Easy PA Nylon 1.75mm 1KG Filament - Strong, Warp-Free

In this review of the SUNLU Easy PA Nylon filament, the bottom line is simple: this spool is for makers who need durable, heat-stable functional parts rather than decorative prints. The reviewer found the filament's biggest selling point to be its combination of high tensile and bending strength with a copolymer formula that minimizes shrinkage, which makes complex, load-bearing parts like gears, bearings and drone arms far more reliable than standard PLA or ABS alternatives. Overall it is a practical choice when mechanical performance matters more than glossy surface finish.

Key Features

• High strength and impact resistance: Tensile and bending strength exceed regular PLA/ABS, so printed parts withstand mechanical stress better.
• Excellent drop and abrasion resistance: The PA filament resists wear and friction, making it well suited for high-stress moving components.
• Low shrinkage and warp-free printing: The Nylon 6/66 copolymer minimizes dimensional changes so complex geometries print with fewer cracks and warps.
• High temperature resistance: Heat deflection up to 121C keeps parts stable in hot environments like engine bays or electronics housings.
• Exceptional layer adhesion: Carbon fiber reinforcement improves interlayer bonding and reduces delamination for dynamic parts.
• Vacuum packaging and PC spool: Aluminum foil vacuum bagging and a heat-resistant PC spool help keep filament dry and ready to print.

Who It's For

The SUNLU Easy PA filament is aimed at hobbyists, makers and small shops that print functional components such as gears, bearings, drone arms and housings that need strength, heat resistance and low warping. Users who prioritize mechanical performance and dimensional accuracy over ultra-smooth aesthetic surfaces will get the most value.

It is less suitable for absolute beginners who are not comfortable with higher nozzle temperatures (270-280C), drying requirements, or printers that lack all-metal hotends. If ease of use and glossy consumer-style finishes are the main goal, a standard PLA or PETG may be a better fit.

Pros & Cons

Pros

• High mechanical strength and impact resistance make parts durable in demanding applications.
• Low shrinkage copolymer formulation reduces warping on complex prints and improves dimensional accuracy.
• Good heat resistance with a 121C heat deflection temperature for use in hotter environments.
• Vacuum-sealed packaging and PC spool improve moisture control and drying options.

Cons

• Requires high nozzle temperatures and proper drying (90C for 12h), so it demands more setup and experience than PLA.
• Some users report mixed results with warping and layer adhesion depending on printer and settings, so tuning may be necessary.

Specifications

Material	Nylon 6/66 copolymer (PA)
Diameter	1.75mm
Spool weight	1KG (2.2lbs)
Nozzle printing temperature	270-280C
Platform temperature	30-50C
Drying recommendation	90C for 12h
Spool dimensions	203.2mm diameter, 63.5mm width, 55.88mm hub hole

Our Verdict

The SUNLU Easy PA Nylon filament is a strong value for anyone printing functional, load-bearing parts that need heat resistance and low warping. It demands proper drying and tuning, but for users willing to work at the recommended 270-280C settings it delivers reliable strength, abrasion resistance and dimensional stability that justify choosing an engineering filament over standard PLA.

Frequently Asked Questions

Does this filament need drying before printing?
Yes. It is recommended to dry the filament at about 90C for roughly 12 hours to reduce moisture-related issues.

What nozzle and bed temperatures are recommended?
Use a nozzle temperature of 270-280C and a build plate temperature of 30-50C as a starting point for most printers.

Is it compatible with most FDM printers?
The spool and 1.75mm diameter are compatible with most printers that support high-temperature filaments and all-metal hotends; confirm spool hub dimensions fit your holder.