Save 20% AMS
PLA Filament
$15.99$19.99
4+ spools $14.07
- White
- Grey
- Black
- Light Green
- Dark Red
- Orange
- Magenta
- Blue
- +2
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Made to work, made to last
Filament that prints right, first time
19 materials from everyday PLA to TPU 72D. Lab-tested spool by spool, with slicer profiles ready, at your door in 2–5 business days.
Most ordered this month
Shop all 19 materials Save 22% AMS
Save 23% AMS
PETG Filament
$16.99$21.99
4+ spools $14.95
- White
- Grey
- Black
- Red
- Yellow
- Blue
- Green
- Purple
- +10
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Save 17% Not AMS
TPU 95A Filament
$24.99$29.99
4+ spools $21.99
- White
- Clear
- Black
- Blue
- Orange
- Yellow
- Green
- Red
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Save 21% AMS
PLA Silk Filament
$18.99$23.99
4+ spools $16.71
- White
- Grey
- Pink
- Blue
- Gold
- Red
- Yellow
- Green
- +6
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Save 22% AMS
PLA+ Filament
$17.99$22.99
4+ spools $15.83
- White
- Grey
- Black
- Green
- Red
- Orange
- Purple
- Blue
- +2
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Save 21% AMS
PETG Transparent Filament
$18.99$23.99
4+ spools $16.71
- Clear
- Blue
- Green
- Red
- Yellow
- Orange
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Save 17% AMS
Mix any 4 spools and save 12%. Applied automatically at checkout, across every material and colour.
Not sure which one?
Tell us what the part has to survive
Pick a need and a printer. We take you to the grade, the settings and the profile that fit.
Finishes that need no finishing
All finishes Save 21% AMS
PLA Silk Filament
$18.99$23.99
4+ spools $16.71
- White
- Grey
- Pink
- Blue
- Gold
- Red
- Yellow
- Green
- +6
Choose options
Save 22% AMS
Save 19% AMS
Save 20% AMS
Print better, not just more
All guides
TPU hardness explained: 85A vs 90A vs 95A vs 98A vs 72D
What Shore hardness means for 3D printing, how each TPU grade feels, which extruder it needs and which parts each grade is for.
6 min read
How to print TPU without stringing or jams
Step-by-step TPU settings for direct-drive and Bowden printers: temperature, speed, retraction, drying and bed prep.
7 min read
PLA vs PETG vs PCTG: which one for the part in front of you
Side-by-side numbers from the same lab: strength, impact, heat deflection and printability for PLA, PLA+, PETG and PCTG.
5 min read
Drying filament: temperatures, times and when it is worth it
A per-material drying table from our lab, the symptoms of wet filament and how to store spools so you dry them less often.
4 min read
Why it prints right
We make it ourselves
FilamentBay is the direct brand of Ultraline 3D: our own plant, our own lab, ± 0.02 mm on every metre. No reseller in between, no formula that changes between batches.
- 2015Founded
- 20,000 m²Factory
- 1,000 tPer month
- 50+Extrusion lines