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Rainbow & gradient filament, single spools, rated 3.5 stars and up, ranked by £/kg — page 3

Every listing we track on Amazon UK that matches all of these filters, ranked by £/kg. Remove a filter with its "All" chip to widen the list.

Silk, dual colour and gradient filament explained →

124 listings tracked, 43 on offer right now.

Product	Material	Weight	Rating	Price	Per kg	Deal
Silk Gradient Rainbow Translucent Blue Green PLA Filament 1.75mm High Intensit	PLA	1 kg	★★★★☆ 4.2 out of 5 (4 Amazon ratings)	£44.21	£44.21	—
Cookiecad Sunset (Pink -> Purple -> Blue Rainbow Transition) PLA 3D Printer Fi	PLA	1 kg	★★★★½ 4.6 out of 5 (1,006 Amazon ratings)	£44.80	£44.80	17% below
iBOSS Gradient PLA Plus 3D Printer Filament 1.75mm+/-0.02mm, 1kg Spool (2. 2lb	PLA+	1 kg	★★★★½ 4.3 out of 5 (11 Amazon ratings)	£46.60	£46.60	—
IEMAI PETG Filament 1.75mm 1Kg, Glitter Transparent 3D Printer Filament PETG G	PETG	1 kg	★★★★½ 4.3 out of 5 (38 Amazon ratings)	—	—	—

Rainbow & gradient filament by brand

Guides

• 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.
• 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.
• 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.
• First layer calibration, properly
  Nearly every adhesion problem and half of all print failures start in the first layer. How to set Z offset by eye, and what a good first layer actually looks like.

Best-selling Filament by year — which actually sold best, going back several years, ranked by sales position rather than opinion.