SUNLU 3KG PLA+2.0 1.75mm Filament - Tougher, Fast Printing

In this review the SUNLU 3KG PLA+2.0 filament is assessed for makers who need a larger spool that balances strength and speed. The bottom line: this filament is best for hobbyists and small workshops that want a tougher PLA with consistent winding and a wide recommended print speed range, because it reduces brittleness while supporting fast printing up to 300mm/s. The reviewer found it especially useful when printing functional parts and detailed models where dimensional accuracy and layer adhesion matter.

Key Features

• Improved toughness: The PLA+2.0 formula is more resistant to brittleness and cracking, giving printed parts better durability for functional use.
• Fast printing support: The filament melts and flows smoothly, enabling reliable print speeds as high as 300mm/s for quicker project turnaround.
• Dimensional accuracy: With a tolerance of +/-0.02mm, the 1.75mm filament produces consistent diameters that work well across most FDM printers.
• Neatly wound spool: The new winding design minimizes tangles and reduces the risk of clogging or filament feed interruptions during long prints.
• Vacuum packaging: Each spool is sealed to stay moisture-free out of the box, preserving print performance for storage and transport.
• Wide application: Suitable for high-precision models, decorative prints, and functional parts thanks to low shrinkage and good layer adhesion.

Who It's For

The SUNLU PLA+2.0 spool is aimed at makers who need a large 3KG capacity for extended printing sessions, including hobbyists, educators, and small shops that run repeated jobs or larger parts. It is particularly useful where both strength and speed matter, for example printing prototypes, mechanical fixtures, or display pieces that must hold up to handling.

Those who should look elsewhere include users who require specialty materials like flexible filament, high-temperature engineering plastics, or exact color-critical production runs; for those needs, a different material family would be more appropriate despite this PLA+ offering solid general-purpose performance.

Pros & Cons

Pros

• Consistent diameter tolerance of +/-0.02mm aids reliable extrusion and dimensional accuracy.
• Tougher than standard PLA+ with reduced brittleness, improving part longevity.
• Neatly wound spool and vacuum packaging lower the chance of tangles and moisture-related issues.
• Supports a wide print speed range, allowing faster prints without obvious loss of quality.

Cons

• Some users report occasional breakage or tangling on rare spools, so quality can vary between batches.
• No specialty formulations for extreme temperature or flexibility requirements are available in this listing.

Specifications

Material	PLA+2.0 (corn starch based)
Diameter	1.75mm +/-0.02mm
Spool weight	3KG (6.6lbs) per spool
Nozzle temperature	205-220C (recommended)
Build plate temperature	50-60C (recommended)
Print speed	50-300mm/s (supports up to 300mm/s)
Spool dimensions	Diameter 195mm, Width 57mm, Hub 63mm

Our Verdict

The SUNLU 3KG PLA+2.0 spool is a strong choice for makers who want a balance of durability and fast printing on a larger spool. It offers reliable dimensional accuracy, neat winding, and vacuum packaging that together make it good value for repeated prints and larger projects. Buy it if you need a general-purpose, tougher PLA for prototyping and functional parts; choose a different material only if you need extreme temperatures or flexibility.

Frequently Asked Questions

What temperature settings work best?
Use a nozzle temperature of about 205-220C and bed temperature of 50-60C for reliable adhesion and flow.

Will it fit my 1.75mm FDM printer?
Yes, the filament is 1.75mm with +/-0.02mm tolerance, making it compatible with nearly all 1.75mm FDM printers that accept PLA variants.

How is it packaged for storage?
The spool is vacuum sealed to keep moisture out; store in a dry place or use a filament dryer for long-term storage.