We track 407 glow in the dark filament listings from 73 brands, with prices checked every 4 hours and normalized to a true cost per kilogram. Glow in the dark filaments contain phosphorescent pigment that charges in light. Many are abrasive, so a hardened nozzle is worth it for regular use. Nozzle types guide.
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The four cheapest 1kg spools by price per kg, each from a different brand.
YOUSU PETG 3D Printer Filament Bundle 1.75mm 1kg 6Pack Translucent 6Colors
Inslogic Pre-Dried PLA Glow in the Dark Bundle 1.75mm, 4×1KG, 4 Colors
Amoybaby PLA Glow in The Dark Filament Bundle 1.75mm Glow PLA Variety Packs
DURAMIC 3D PLA Glow in the Dark Filament Neatly 1.75mm 1Kg 2Pack Glow Green
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