Filament deals
Cheapest glow in the dark filament in the UK
54 glow in the dark filaments in stock on Amazon UK and Eryone UK, cheapest per kilogram first.
- filaments
- 54
- cheapest
- £12.26/kg
Live prices
Prices checked 5 Oct, 03:00 – 6 Oct, 13:20 (UK time) and may change.We earn a small commission if you buy. Your price stays the same.
About glow in the dark filament
Glow in the dark filament carries a phosphorescent pigment that charges in daylight or under a lamp and then glows for a while in the dark. Green and blue usually glow brightest and longest.
How bright and how long it glows depends on the pigment, the colour and how thick the print is, so check the photos and reviews on each listing. Thicker walls glow brighter than thin ones.
Common questions
What is the cheapest glow in the dark filament right now?
Right now it is TECBEARS PETG Glow in The Dark Filament, 1kg, White PETG, Glow Blue at £12.26 (£12.26 per kg) on Amazon UK (as of 6 Oct 2026). This page lists the cheapest per kilogram first, and prices are re-checked through the day.
Which materials does glow in the dark filament come in?
In stock on Amazon UK and Eryone UK right now: PLA Glow (46), PETG Glow (6), PETG Translucent (1) and PLA Silk Dual/Tri (1).
Do I need a hardened nozzle for glow in the dark filament?
For PLA Glow, yes: our material data marks them as abrasive, and abrasive filament wears out brass nozzles quickly. A hardened steel nozzle lasts far longer.
How long does glow in the dark filament glow?
From a few minutes to a few hours, fading as it goes. It depends on the pigment, the colour and how well the print was charged: a few minutes in sunlight or under a bright lamp gives the strongest glow.
How SpoolDeal checks prices
The same rules on every page, so a deal badge means the same thing everywhere.
Re-checked through the day
Every tracked listing on Amazon UK and Eryone UK is re-checked through the day, and the most-watched ones every two hours.
Measured against our own history
A deal only counts when the price is below what that reel has actually sold for over the last 90 days, not a seller's “was” price.
An email when it drops
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