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RepRapper filament, ranked by £/kg

Every RepRapper listing in our filament section on Amazon UK, ranked by £/kg. The brand comes from Amazon’s own listing data.

8 listings tracked, 7 on offer right now.

Product	Material	Weight	Rating	Price	Per kg	Deal
no image yet Reprapper PLA Filament 1.75mm 1KG – Red/Gold/Blue Tri Colour Silk PLA Filament	PLA	1 kg	—	£11.20	£11.20	—
no image yet Reprapper PLA Filament 1.75mm 1KG – Green/Blue/Rose Red Tri Colour Silk PLA Fi	PLA	1 kg	—	£11.99	£11.99	—
RepRapper Forest Rainbow Silk PLA Filament 1.75mm, Shiny Gradient Multicolor 3	PLA	1 kg	★★★★☆ 4.1 out of 5 (1,682 Amazon ratings)	£12.74	£12.74	15% below
no image yet Reprapper PLA Filament 4 X 250g Color Pack, Triple Color Filament Coextrusion	PLA	1 kg	—	£15.99	£15.99	—
no image yet RepRapper Glow in The Dark PLA Filament 1.75mm (4×250g) – 3D Printer Filament	PLA	1 kg	—	£16.99	£16.99	—
no image yet RepRapper Glow in The Dark Rainbow PLA Filament 1.75mm – Phosphorescent Multic	PLA	1 kg	—	£17.66	£17.66	Warehouse
RepRapper Glow in The Dark PLA Filament 1.75mm (4×250g) – High-Brightness Lumi	PLA	1 kg	★★★★☆ 4.2 out of 5 (1,686 Amazon ratings)	£18.10	£18.10	Warehouse
Reprapper Polypropylene PP Filament, Semi-Flexible Ultra Tough 1.75mm 3D Print	TPU	1 kg	★★★½☆ 3.4 out of 5 (12 Amazon ratings)	£18.52	£18.52	Warehouse

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Guides

• 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.
• 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.

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