Bambu Lab PLA Glow

Bambu Lab PLA Glow Filament — 1.75mm, 1kg

PLA Glow is Bambu Lab's glow-in-the-dark PLA. It is a standard PLA base loaded with phosphorescent (luminous) powder, so it prints with the same low temperatures and forgiving behaviour you already expect from PLA — then charges under sunlight, room lighting or a UV torch and glows once the lights go out. It's a favourite for Halloween props and cosplay, D&D miniatures and dice trays, night-visible light switch plates and door handles, glowing signage and light diffusers, classroom STEM projects, and any print that needs to be findable in the dark.

Because the glow effect comes from a real mineral additive rather than a dye, the filament is noticeably harder and more abrasive than plain PLA. Plan for a hardened steel nozzle before you start a spool — that single change is the difference between a great experience and a worn-out hot end.

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Key Features

Glows in the dark Low-temp PLA printing ±0.03mm tolerance RFID spool — auto AMS settings Up to 250mm/s 5 glow colours Reusable 1kg spool

Printer compatibility: works on any 1.75mm FDM printer that can run PLA — Bambu Lab X1, P1 and P2 series, A1, plus Prusa, Creality, Elegoo, Anycubic and similar machines. On Bambu Lab printers the RFID tag loads the correct profile automatically. Use a 0.4mm, 0.6mm or 0.8mm hardened nozzle; 0.2mm nozzles are not recommended as the glow powder can clog them. PLA Glow runs in the standard AMS, but Bambu Lab advises against feeding it through the AMS Lite — the stiff, rough filament creates enough feed resistance to cause failures, so load it direct from an external spool holder on A1 and A1 mini.

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Recommended Print Settings

• Nozzle temperature: 190–230 °C (start at 220 °C)
• Bed temperature: 35–45 °C — Cool Plate, Smooth PEI, Textured PEI or SuperTack all work well
• Print speed: up to 250 mm/s; slow to around 100 mm/s for fine detail and small miniatures
• Part cooling fan: as with all PLA, generous cooling improves overhangs and surface finish
• Nozzle: hardened steel, 0.4mm or larger (required for regular use — the luminous powder wears brass and standard stainless)
• Drying: 55 °C for 8 hours in a filament/blast dryer, or 65–75 °C for 12 hours on an X1-series heatbed
• Storage: sealed with desiccant below 20% RH

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Specifications

Material

PLA Glow (glow-in-the-dark PLA)

Diameter

1.75 mm

Diameter Tolerance

±0.03 mm

Spool Weight

1 kg net (supplied with reusable spool)

Print Temp

190–230 °C

Bed Temp

35–45 °C

Max Print Speed

< 250 mm/s

Nozzle Requirement

Hardened steel, 0.4 mm+

Colours Available

5 — Orange, Blue, Green, Pink, Yellow

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Available Colours

Glow Orange · 15300 Glow Blue · 15600 Glow Green · 15500 Glow Pink · 15200 Glow Yellow · 15400

All five share the same specs and print settings — choose your colour from the dropdown above. Note that each colour describes the daylight appearance of the spool; the glow itself is a soft luminous tone rather than a bright saturated colour, and Green is the brightest and longest-lasting of the range.

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Tips for Best Results

Fit the hardened nozzle first. The phosphorescent powder is genuinely abrasive and can visibly wear a brass or standard stainless nozzle within a single kilogram — a hardened steel nozzle is cheap insurance and keeps your extrusion width consistent right to the end of the spool.

Design for a brighter glow. Glow intensity depends on how much luminous material light can reach, so thicker walls (3–4 perimeters) and higher infill glow far more strongly than thin-walled prints. Charge the finished part under bright daylight or a UV torch for a couple of minutes before showing it off. And like all PLA, keep the spool sealed with desiccant between prints — damp filament causes stringing and a rough surface that dulls the effect.