1.75mm High Speed PLA Filament 4kg Pack of 4 - Fast Printing

In this review of the 1.75mm High Speed PLA filament pack, the bottom line is straightforward: this kit suits makers who need to speed up production without sacrificing basic print reliability. The reviewer found the four-color pack useful for quick prototyping and short-run parts, and the single biggest reason to buy is the filament's focus on higher flowability and faster cooling, which together allow much quicker print times while reducing common speed-related failures. This review highlights real-world behavior and who will benefit most.

Key Features

• High flowability: A claimed 500% increase in flowability lets printers maintain extrusion at speeds above 250mm/s for faster prints.
• Efficient cooling: Improved heat dissipation helps layers cool and cure sooner, reducing deformation during high-speed printing.
• Lower temperature range: The average printing temperature is lower than regular PLA, which can save energy and reduce heat stress on small printers.
• Dimensional consistency: Consistent 1.75mm diameter with a 0.02mm tolerance helps reduce jams and maintain extrusion stability.
• Moisture control: Spools are pre-dried for 24 hours and vacuum-sealed to avoid bubbles and reduce clogging caused by damp filament.

Who It's For

The filament is best for hobbyists and small workshop users who prioritize faster turnaround on prototypes and are comfortable adjusting slicer settings for high-speed printing. Users with printers capable of reliable high feed rates will see the most value from the pack of four 1kg spools in black, white, blue and green.

Those who should look elsewhere include absolute beginners who cannot or will not tune temperature and speed settings, and users who need specialty mechanical properties beyond standard PLA - this product is optimized for speed and handling rather than advanced engineering materials.

Pros & Cons

Pros

• High-speed printing potential delivers substantial time savings when slicer settings are matched to the filament.
• Improved cooling behavior reduces common fast-print defects and helps preserve part detail.
• Good spool packaging and consistent diameter increase the chance of successful prints and reduce moisture-related issues.

Cons

• Some users report mixed results with adhesion and occasional tangling, so bed preparation and spool handling remain important.
• Temperature sensitivity means novices may need trial-and-error to avoid stringing or under-extrusion at high speeds.

Specifications

Brand	SUNLU
Filament diameter	1.75mm (0.02mm)
Total weight	4kg (4 spools, 1kg each)
Color set	Black, White, Blue, Green
Print speed range	Recommended 30mm/s - 600mm/s (high-speed capable)
Packaging	24-hour pre-dry and vacuum-sealed spools

Our Verdict

The SUNLU 4kg high speed PLA pack is a practical choice for makers who want to cut print time and still get reliable results; it is particularly good value for faster prototyping and multicolor projects. With sensible slicer tuning and attention to bed adhesion, this filament delivers faster cycles and solid print quality for most everyday PLA uses.

Frequently Asked Questions

Is this filament suitable for high-speed printers?
Yes. It is designed for higher flow and improved cooling to support speeds above 250mm/s when slicer settings are matched.

Do the spools arrive ready to print?
Spools are pre-dried for 24 hours and vacuum-sealed to reduce moisture; open and store them in a dry place for best results.

Will this filament stick reliably to any build surface?
Adhesion is generally good but mixed for some users; proper bed preparation and possible adhesive aids are recommended for consistent first-layer adhesion.