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Glow in the dark filament, ranked by £/kg — on offer now

Filament that glows after being exposed to light. The glowing particles are abrasive, so a hardened nozzle is the safer choice for regular use. Ranked by cost per kilogram.

Hardened vs brass nozzles for abrasive filament →

4 currently discounted.

Product	Material	Weight	Rating	Price	Per kg	Deal
ZIRO PLA Glow in Dark Filament 1.75mm, 3D Printer Filament PLA PRO 1KG	PLA	1 kg	★★★★☆ 4.2 out of 5 (886 Amazon ratings)	£13.71	£13.71	Warehouse
no image yet TECBEARS PLA Glow in The Dark Filament, 1kg, White PETG, Glow Blue	PETG	1 kg	—	£13.99	£13.99	—
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

Glow in the dark filament by brand

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.