{
  "opening": "Keep a profile per color. The leading comment on the same-gcode PLA thread says different colors are different material and need their own profile, while the white-PLA, black-mark, and black-PETG threads in this bank are a clog, a purge, and a Z offset.",
  "question": "Why do different colors of the same filament print differently?",
  "slug": "filament_color",
  "useCase": "troubleshooting",
  "useCaseLabel": "Troubleshooting",
  "updated": "2026-10-20",
  "shortAnswer": "Keep a profile per color. The leading comment on the same-gcode PLA thread says different colors are different material and need their own profile, while the white-PLA, black-mark, and black-PETG threads in this bank are a clog, a purge, and a Z offset.",
  "recommendedMaterials": [
    "pla",
    "petg"
  ],
  "printerConsiderations": [
    "Split light and dark shades into two profiles when one profile misbehaves. That split is a score-3 reply on r/FixMyPrint 1jzuaev, not a catalog field.",
    "A color change in an AMS still needs a purge. Black marks on another color, in r/BambuLab 17tpo7j, are leftover black in the hotend.",
    "A first layer that will not stick is a Z offset until the color is ruled in. r/FixMyPrint zxnw8h is Hatchbox black PETG, and the replies raise the bed or lower Z."
  ],
  "pros": [
    "The profile-per-color line is the highest-scored reply on the thread that actually compares two colors of one PLA.",
    "The other four threads stay labeled as a clog, a purge, a matte-PETG impression, and a first layer."
  ],
  "cons": [
    "No ranked row lists a different nozzle for black and for white. This page does not invent that split.",
    "The 220 °C (428 °F), 45 °C (113 °F), and 40 mm/s figures are one commenter's Spectrum settings on an Ender 3 Pro. They are not a Spectrum datasheet, and Spectrum Premium PLA is not a ranked id."
  ],
  "community": "r/FixMyPrint 1jzuaev is the same gcode on an Ender 3 Pro with a Micro Swiss hotend. White Spectrum Premium PLA was dialed in, and black Spectrum Premium PLA underextruded. The score-21 reply says different colors are different material and that each one needs a profile. A score-3 reply keeps two profiles, light shades and dark shades, and says only a couple of colors needed a third. Another score-3 reply is printing at 220 °C (428 °F), a 45 °C (113 °F) bed, and 40 mm/s in OrcaSlicer. r/prusa3d 16cnyzd asks about Prusament Matte Black PETG. A score-3 reply likes the look and thinks it is less flexible than other PETG, and says they cannot prove it. Another score-3 reply says a matte black from a different maker hides vertical seams. r/BambuLab 158cktx is white PLA stuck in a hotend after a heat to 250 °C (482 °F) failed to push it out. The leading reply is a heated hex key used as a pull, which is a clog method. r/BambuLab 17tpo7j is black PLA marking other colors on an X1C with an AMS. The score-37 reply says the black purge is too low. r/FixMyPrint zxnw8h is Hatchbox black PETG on painter's tape. The replies say the nozzle is too far off the bed.",
  "related": [
    "flow",
    "pla_temp",
    "temp_general"
  ],
  "faq": [
    {
      "q": "Should black and white share one slicer profile?",
      "a": "The score-21 reply says no. Set a profile per color. A lower reply on the same thread keeps one profile for light shades and one for dark shades. The catalog still stores one nozzle range per product."
    },
    {
      "q": "Why does black PLA mark the next color?",
      "a": "On r/BambuLab 17tpo7j the score-37 reply says the purge of the black is too small, so black left in the hotend mixes into the next color. That thread does not treat black as a different polymer."
    }
  ],
  "sources": [
    {
      "title": "Prusament PETG technical data sheet",
      "url": "https://www.prusa3d.com/file/3464616/prusament-petg-technical-data-sheet.pdf",
      "kind": "datasheet"
    },
    {
      "title": "PolyLite PLA product page",
      "url": "https://us.polymaker.com/products/polylite-pla",
      "kind": "manufacturer"
    },
    {
      "title": "Bambu PLA Basic technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0584/7236/6216/files/Bambu_PLA_Basic_Technical_Data_Sheet_bf3411ce-be39-4db7-9669-1b4671d2196b.pdf?v=1734060943",
      "kind": "datasheet"
    },
    {
      "title": "Prusa drying filament guide",
      "url": "https://help.prusa3d.com/article/drying-filament_332086",
      "kind": "manufacturer"
    },
    {
      "title": "Community source, r/FixMyPrint 1jzuaev",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/1jzuaev/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/prusa3d 16cnyzd",
      "url": "https://www.reddit.com/r/prusa3d/comments/16cnyzd/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 158cktx",
      "url": "https://www.reddit.com/r/BambuLab/comments/158cktx/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 17tpo7j",
      "url": "https://www.reddit.com/r/BambuLab/comments/17tpo7j/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/FixMyPrint zxnw8h",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/zxnw8h/",
      "kind": "reddit"
    }
  ],
  "recommendations": [
    {
      "rank": 1,
      "note": "Prusament PLA lists a nozzle of 205–225 °C (401–437 °F) and a bed of 40–60 °C (104–140 °F). The OrcaSlicer comment on r/FixMyPrint 1jzuaev uses 220 °C (428 °F), a 45 °C (113 °F) bed, and 40 mm/s on Spectrum Premium PLA. 220 °C (428 °F) and 45 °C (113 °F) sit inside this row. Spectrum Premium PLA is not this catalog row.",
      "brand": "Prusament",
      "product": "PLA",
      "material": "PLA",
      "url": "/brand/prusament/pla",
      "nozzle": "205–225 °C (401–437 °F)",
      "bed": "40–60 °C (104–140 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    },
    {
      "rank": 2,
      "note": "PolyLite PLA lists 190–230 °C (374–446 °F), a bed of 25–60 °C (77–140 °F), 40–60 mm/s, and drying at 55 °C (131 °F) for 6 h. The same 220 °C (428 °F) and 45 °C (113 °F) comment sits inside this nozzle and bed. The product page lists the fan on.",
      "brand": "Polymaker",
      "product": "Polylite PLA",
      "material": "PLA",
      "url": "/brand/polymaker/polylite-pla",
      "nozzle": "190–230 °C (374–446 °F)",
      "bed": "25–60 °C (77–140 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PLA_TDS_EN_V5.4.pdf",
      "affiliateUrl": null
    },
    {
      "rank": 3,
      "note": "PLA Basic lists 190–230 °C (374–446 °F) and a bed of 35–45 °C (95–113 °F), with drying at 50 °C (122 °F) for 8 h. 220 °C (428 °F) is inside the nozzle. 45 °C (113 °F) is the top of this bed. The comment was not printed on a Bambu machine.",
      "brand": "Bambu Lab",
      "product": "PLA Basic",
      "material": "PLA",
      "url": "/brand/bambu-lab/pla-basic",
      "nozzle": "190–230 °C (374–446 °F)",
      "bed": "35–45 °C (95–113 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0584/7236/6216/files/Bambu_PLA_Basic_Technical_Data_Sheet_bf3411ce-be39-4db7-9669-1b4671d2196b.pdf?v=1734060943",
      "affiliateUrl": null
    },
    {
      "rank": 4,
      "note": "Prusament Matte PETG lists 240–260 °C (464–500 °F) and a bed of 70–90 °C (158–194 °F). Drying on the row is the Prusa material guide, 55 °C (131 °F) for 6 h, not a color-specific sheet. r/prusa3d 16cnyzd asks about this look. Replies say it seems less flexible and that they cannot prove it.",
      "brand": "Prusament",
      "product": "Matte PETG",
      "material": "PETG",
      "url": "/brand/prusament/matte-petg",
      "nozzle": "240–260 °C (464–500 °F)",
      "bed": "70–90 °C (158–194 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    }
  ]
}