Sunlu PLA Glow-in-the-Dark Filament White and Green, PLA Glow W-G for FDM 3D Printing

Sunlu PLA Glow-in-the-Dark Filament White and Green (PLA Glow W-G) is a PLA-based filament for FDM 3D printers that absorbs light and emits a greenish glow in the dark. It is supplied on a 1 kg spool and is compatible with printers that use 1.75 mm filament. The material is pre-dried and vacuum-packed with desiccant to reduce moisture-related printing issues and support consistent extrusion.

Advantages

The filament contains phosphorescent additives that produce visible luminescence after exposure to light, with a stronger effect after UV exposure. Tight diameter control and a 1.75 mm option with close tolerance help ensure steady filament feed and reliable print quality. Factory drying and resealable vacuum packaging with desiccant reduce the risk of bubbles and clogs during printing.

Suitable for

• Decorative models and ornaments
• Cosplay props and costume elements
• Safety markers and signage visible in low light
• Novelty items and toys with glow effects

When it may not be suitable

This phosphorescent PLA is not intended for prolonged outdoor exposure in direct sunlight, as extended UV and heat can accelerate color fading. It is also not suitable for applications requiring high heat resistance or structural performance above PLA’s typical limitations.

Key specifications

• Material: PLA with phosphorescent additives
• Colour: white (in daylight) — green glow in the dark
• Available diameter: 1.75 mm (primary); also listed 3.0 mm option
• Dimensional tolerance: ±0.02–±0.03 mm (manufacturer tolerance listed)
• Recommended printing temperature: 200–210 °C
• Recommended bed: no heating with adhesive or heated bed 50–65 °C without adhesive
• Recommended printing speed: 50–100 mm/s
• Tensile strength: 11–16 kgf (measured at 23 °C, 1.75 mm)
• Elongation at break: ~4% (measured at 23 °C, 1.75 mm)
• Melting temperature range: 165–180 °C
• Heat deflection temperature: 55 °C
• Density: 1.24 g/cm³
• Water absorption: 0.5%
• Flow/melt index: 7–9 g/10 min (190 °C, 2.16 kg)
• Finish: bubble-free (factory claim)
• Spool weight: 1 kg (approx. length 1.75 mm = 330 m; 3.0 mm variants listed separately)

How to use

Load the 1.75 mm filament into any FDM printer that supports this diameter. Use standard PLA settings: nozzle temperature around 200–210 °C and bed settings according to adhesion method — adhesive on an unheated bed or 50–65 °C on a heated bed without adhesive. Ensure proper cooling and moderate print speeds (50–100 mm/s) for balanced surface detail and extrusion stability. For best glow, expose prints to a strong light source or UV lamp before use.

What to consider before purchase

• Confirm your printer supports the chosen filament diameter (1.75 mm or 3.0 mm).
• Check that PLA’s thermal and mechanical properties meet your application requirements (not for high-temperature loads).
• Store unopened or unused filament in a dry place; reseal with desiccant after opening to preserve glow and printing quality.
• Expect stronger glow after exposure to UV light; prolonged direct sunlight may fade colour over time.

Usage recommendations

To maximize luminescence, charge printed parts under bright light or a UV source for several minutes before use; print with adequate infill and wall thickness for even glow distribution and avoid leaving finished items in prolonged direct sunlight to reduce color degradation.