Uploaded February 2026 | Updated September 2026, 2 weeks ago

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Prusament PETG Ultraglow green is the brightest glow-in-the-dark filament on the market. It is filled with the highest possible amount of strontium aluminate, which is a safe alternative to previously used Phosphorus. We used the maximum we could achieve while maintaining reliable printability and delivering exceptionally bright luminescence. We felt like there was no strong reason to make another mediocre glow-in-the-dark PLA filament, as the market already has plenty. Instead, we did what we do best: we took it up to eleven.

Announcement article: blog.prusa3d.com/prusament-petg-ultraglow-green-the-brightest-glowing-filament-on-the-market_131261

Eshop: prusa3d.com/product/prusament-petg-ultraglow-green-800g-nfc

Prusament webpage: prusament.com