{
  "opening": "The comments supplied here are about brittle PLA, not about a nozzle alloy. Prusament PETG Ultraglow's product page is the row that says the material is abrasive and wants a hardened nozzle. Dry a brittle spool on its own drying line.",
  "question": "How do I print glow-in-the-dark filament?",
  "slug": "glow",
  "useCase": "pla",
  "useCaseLabel": "PLA",
  "updated": "2026-10-21",
  "shortAnswer": "The comments supplied here are about brittle PLA, not about a nozzle alloy. Prusament PETG Ultraglow's product page is the row that says the material is abrasive and wants a hardened nozzle. Dry a brittle spool on its own drying line.",
  "recommendedMaterials": [
    "petg",
    "pla"
  ],
  "printerConsiderations": [
    "The brittle comments match the brittle-PLA page. They do not say to change the nozzle.",
    "Bambu's filament guide, written up on the nozzle page, names glow among particle fills that use hardened steel. That guide is not these Reddit comments. Prusament PETG Ultraglow is the product page in this table that states the requirement itself.",
    "Overture Glow PLA's bed is 25–60 °C (77–140 °F). Hatchbox Glow PLA's page does not state a bed. Do not copy one onto the other."
  ],
  "pros": [
    "The abrasive-nozzle instruction comes from the Prusa product page, separate from the brittle comments.",
    "Drying lines that exist are named with their source. Rows without one stay blank."
  ],
  "cons": [
    "The four comments are brittle PLA. They do not mention glow pigment or a hardened nozzle."
  ],
  "community": "The editorial summary says glow filament is abrasive and can be brittle, and to use a hardened nozzle. The excerpts only cover the brittle half, and they do it for PLA in general. r/3Dprinting 1myq0ge, score 560: \"Was it like that when it arrived? If so I wouldn’t accept that shit.\" Score 464: \"When pla gets old and moist it gets very brittle. But it's way worse with cheap filament usually\". r/FixMyPrint uh9ge7, score 203: \"I have had filament snap when trying to get it off the roll... That's not that bad. Dry it out.\" Score 150: \"I've had way more brittle PLA than that and it prints fine. That looks like it took some effort to break to me.\" No excerpt was supplied for r/BambuLab 17i0ldl, r/BambuLab 1u3n1re, or r/FixMyPrint tzeki9.",
  "related": [
    "nozzle",
    "brittle",
    "drying",
    "pla_print"
  ],
  "faq": [
    {
      "q": "How do I print glow-in-the-dark filament?",
      "a": "The comments supplied here are about brittle PLA, not about a nozzle alloy. Prusament PETG Ultraglow's product page is the row that says the material is abrasive and wants a hardened nozzle. Dry a brittle spool on its own drying line."
    },
    {
      "q": "Do the comments say glow filament needs a hardened nozzle?",
      "a": "No. They talk about PLA that arrived brittle, old moist PLA, and a spool that snaps coming off the roll. Prusament PETG Ultraglow's product page is the source in this table that calls the material highly abrasive and asks for a hardened nozzle. Bambu's filament guide names glow as a particle fill. That guide is on the nozzle page."
    },
    {
      "q": "Is brittle glow filament a wet spool?",
      "a": "The score-464 comment says old, moist PLA gets very brittle, and that cheap filament is worse. The score-203 comment says to dry it. Overture Glow PLA lists drying at 50 °C (122 °F) for 7 h. Bambu PLA Glow's sheet lists 55 °C (131 °F) for 8 h. Hatchbox Glow PLA does not store a drying line. The brittle page is the longer version of the same two threads."
    }
  ],
  "sources": [
    {
      "title": "Prusament PETG Ultraglow product page",
      "url": "https://www.prusa3d.com/product/prusament-petg-ultraglow-green-800g-nfc/",
      "kind": "manufacturer"
    },
    {
      "title": "Overture Glow PLA product page",
      "url": "https://overture3d.com/products/overture-glow-pla",
      "kind": "manufacturer"
    },
    {
      "title": "Hatchbox Glow PLA product page",
      "url": "https://www.hatchbox3d.com/products/3d-pla-1kg1-75-glow",
      "kind": "manufacturer"
    },
    {
      "title": "Bambu PLA Glow technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0573/5320/7868/files/Bambu_PLA_Glow_Technical_Data_Sheet.pdf?v=1701764565",
      "kind": "datasheet"
    },
    {
      "title": "Bambu Lab filament guide",
      "url": "https://wiki.bambulab.com/en/general/filament-guide-material-table",
      "kind": "manufacturer"
    },
    {
      "title": "Open Filament Database, Hatchbox Glow PLA",
      "url": "https://api.openfilamentdatabase.org/api/v1/brands/hatchbox/materials/PLA/filaments/glow_pla/index.json",
      "kind": "other"
    },
    {
      "title": "Open Filament Database, Bambu PLA Glow",
      "url": "https://api.openfilamentdatabase.org/api/v1/brands/bambu_lab/materials/PLA/filaments/glow/index.json",
      "kind": "other"
    },
    {
      "title": "Community source, r/3Dprinting 1myq0ge",
      "url": "https://www.reddit.com/r/3Dprinting/comments/1myq0ge/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/FixMyPrint uh9ge7",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/uh9ge7/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 17i0ldl",
      "url": "https://www.reddit.com/r/BambuLab/comments/17i0ldl/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 1u3n1re",
      "url": "https://www.reddit.com/r/BambuLab/comments/1u3n1re/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/FixMyPrint tzeki9",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/tzeki9/",
      "kind": "reddit"
    }
  ],
  "recommendations": [
    {
      "rank": 1,
      "note": "Prusa product page checked 16 October 2026. Nozzle 260 ± 10 °C (500 ± 18 °F) and heatbed 85 ± 10 °C (185 ± 18 °F). The check records it as highly abrasive, needing a hardened nozzle, and recommends a 0.6 mm hardened non-high-flow nozzle. Drying on the page is described as optional, with no temperature or time listed.",
      "brand": "Prusament",
      "product": "PETG Ultraglow",
      "material": "PETG",
      "url": "/brand/prusament/petg-ultraglow",
      "nozzle": "250–270 °C (482–518 °F)",
      "bed": "75–95 °C (167–203 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    },
    {
      "rank": 2,
      "note": "Overture Glow PLA product page checked 17 October 2026. Nozzle 190–220 °C (374–428 °F), bed 25–60 °C (77–140 °F), drying at 50 °C (122 °F) for 7 h. The hardened flag is blank.",
      "brand": "Overture",
      "product": "Glow PLA",
      "material": "PLA",
      "url": "/brand/overture/glow-pla",
      "nozzle": "190–220 °C (374–428 °F)",
      "bed": "25–60 °C (77–140 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    },
    {
      "rank": 3,
      "note": "Hatchbox Glow PLA product page checked 19 October 2026 states a print temperature of 180–220 °C (356–428 °F) and does not state a bed. The catalog bed of 50–70 °C (122–158 °F) is the Open Filament Database cell. Drying is not stored.",
      "brand": "Hatchbox",
      "product": "Glow PLA",
      "material": "PLA",
      "url": "/brand/hatchbox/glow-pla",
      "nozzle": "180–220 °C (356–428 °F)",
      "bed": "50–70 °C (122–158 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    },
    {
      "rank": 4,
      "note": "Bambu PLA Glow technical data sheet is the drying source, 55 °C (131 °F) for 8 h. Nozzle 190–230 °C (374–446 °F) and bed 50–70 °C (122–158 °F) are the Open Filament Database cells. The hardened flag on this row is blank.",
      "brand": "Bambu Lab",
      "product": "PLA Glow",
      "material": "PLA",
      "url": "/brand/bambu-lab/pla-glow",
      "nozzle": "190–230 °C (374–446 °F)",
      "bed": "50–70 °C (122–158 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0573/5320/7868/files/Bambu_PLA_Glow_Technical_Data_Sheet.pdf?v=1701764565",
      "affiliateUrl": null
    }
  ]
}