Glow-in-the-dark PLA print settings

PLA loaded with strontium aluminate so it glows after a light charge. Prints like PLA, and is the most abrasive filament most people ever load.

Enclosure: Prints fine in open air.

Bed surface & adhesion

As PLA — smooth or textured PEI, no glue needed.

Retraction starting points

Forgiving — start mid-range and fine-tune with a retraction test tower.

Good for

• Signs, light pulls, cosplay and props
• Parts that need to be findable in the dark

Watch out for

• Extremely abrasive — the glow powder is a ceramic and can ruin a brass nozzle
• inside one spool. Fit hardened steel first, not after
• Use a 0.6 mm nozzle if you can; the powder bridges narrow ones
• Glow comes from thickness — thin walls barely glow at all
• It charges from UV or daylight and fades over minutes, not hours
• Density swings with how much powder the brand adds — weigh, don't assume

Where to buy

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Problems this material is prone to

Other filaments

These are widely-published starting points for the generic material, not a specification. Individual spools vary by brand, colour and additive package — always defer to the figures printed on your spool.