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Colour-changing filament, ranked by £/kg
Filament that changes colour with temperature or UV light, a favourite for toys and novelty gifts. Ranked by cost per kilogram.
By material:
PLA (913)
PETG (283)
PLA+ (221)
TPU (74)
ABS (40)
ASA (31)
Nylon (18)
PETG-CF (12)
PC (7)
By finish:
Silk (280)
Matte (174)
Dual & triple colour (150)
Rainbow & gradient (124)
Translucent (137)
Glow in the dark (34)
Sparkle & glitter (29)
Marble (16)
Wood (21)
Colour-changing (3)
3 listings tracked, 1 on offer right now.
| Product | Material | Weight | Rating | Price | Per kg | Deal |
|---|---|---|---|---|---|---|
| MG Chemicals ABS Thermochromic Color Changing Green to Yellow 3D Printer Filam | ABS | 1 kg | — | £14.50 | £14.50 | — |
 3D Printer Color Changing PLA Filament Color Change PLA Purple Blue to Pink 1. |
PLA | 1 kg | 4.3 out of 5 (37 Amazon ratings) | £35.62 | £35.62 | 23% below |
| Gizmo Dorks PLA Filament 1.75mm 200g for 3D Printers, Heat Color Change Purple | PLA | 0.2 kg | — | £11.92 | £59.60 | — |
Guides
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Silk filament: how to get the shiny finish
Silk PLA gives prints a metallic sheen, and dual or triple colour silk shifts colour as it turns. What it is, how to print it, and where it falls short.
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Bed adhesion: what actually works
Glue sticks, hairspray, rafts, brims and expensive surfaces — an honest ranking of what fixes prints coming loose, starting with the free fix that solves most cases.
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Do you need a filament dryer?
Wet filament is real and ruins prints, but a dedicated dryer is not the only answer. How to tell if moisture is your problem, and what to do about it.
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Filament storage: dry boxes, vacuum bags and desiccant
Keeping filament dry is cheaper than drying it out. What actually works, what desiccant to use, and why the little sachet in the bag is already spent.
Best-selling Filament by year — which actually sold best, going back several years, ranked by sales position rather than opinion.