{
  "opening": "Use PLA when the part is decorative or has no load-over-time, heat, or UV requirement. Use PETG when the part is functional. That split is what the on-topic comments say, and the print temperatures stay on each spool's row.",
  "question": "PLA vs PETG: which should I use for functional parts?",
  "slug": "pla_vs_petg",
  "useCase": "pla",
  "useCaseLabel": "PLA",
  "updated": "2026-10-21",
  "shortAnswer": "Use PLA when the part is decorative or has no load-over-time, heat, or UV requirement. Use PETG when the part is functional. That split is what the on-topic comments say, and the print temperatures stay on each spool's row.",
  "recommendedMaterials": [
    "pla",
    "petg"
  ],
  "printerConsiderations": [
    "A functional part that also sees heat or sun is the PETG case in the comments, and the heat and outdoor pages if the part goes further than room temperature.",
    "PrimaSelect PLA and PrimaSelect PETG both publish an ISO 75 HDT with no load. Do not rank 57 °C (135 °F) against 69 °C (156 °F) as if the load matched.",
    "Match the row to the printer maximums. PETG HF's nozzle starts at 230 °C (446 °F). PrimaSelect PLA stops at 220 °C (428 °F)."
  ],
  "pros": [
    "The functional-versus-decorative split is quoted from a score-45 comment, not from a title.",
    "Nozzle, bed, and the two HDT figures come from checked product pages or a technical data sheet."
  ],
  "cons": [
    "Color range is a comment about how many PLA finishes exist. It is not a strength test."
  ],
  "community": "r/BambuLab 1weg5gw, score 45: \"I think PLA tends to have a much nicer finish so it better for figurines. PETG tends to be shinier even in matte. I reach for PETG for functional prints and PLA for decorative prints.\" Score 12 on the same thread: \"PLA is easier to print, but if you have PETG, try that before buying PLA\". r/prusa3d 1im3lgv, score 17, says material depends on what you are printing for, and that PLA works when there is no requirement for load-over-time, temperature, or UV resistance. Score 44 on that thread is about how many decorative PLA finishes exist. The editorial summary says PETG for heat, outdoor, and flexing or impact, and PLA for stiffness, accuracy, and ease. The excerpts name the heat, UV, and load-over-time limits. They do not measure stiffness or accuracy. No excerpt was supplied for r/3Dprinting 1wrzw8c, r/BambuLab 1hslyx9, or r/BambuLab 1kefwx6.",
  "related": [
    "pla_print",
    "petg_print",
    "heat",
    "pla_outdoor",
    "outdoor",
    "pla_creep"
  ],
  "faq": [
    {
      "q": "PLA vs PETG: which should I use for functional parts?",
      "a": "Use PLA when the part is decorative or has no load-over-time, heat, or UV requirement. Use PETG when the part is functional. That split is what the on-topic comments say, and the print temperatures stay on each spool's row."
    },
    {
      "q": "Do the comments say PETG is always stronger?",
      "a": "No. The score-45 comment reaches for PETG for functional prints and PLA for decorative prints. The score-17 comment keeps PLA when the part has no load-over-time, temperature, or UV requirement."
    },
    {
      "q": "Can I compare the 57 °C (135 °F) and 69 °C (156 °F) HDT numbers?",
      "a": "Both are ISO 75 figures from PrimaCreator pages, and neither page states the load. The heat-resistance dataset says HDT values are only comparable at the same load and standard. Leave the comparison at that."
    }
  ],
  "sources": [
    {
      "title": "Polymaker US PolyLite PLA product page",
      "url": "https://us.polymaker.com/products/polylite-pla",
      "kind": "manufacturer"
    },
    {
      "title": "PrimaSelect PLA product page",
      "url": "https://primacreator.com/products/primaselect-pla",
      "kind": "manufacturer"
    },
    {
      "title": "PrimaSelect PETG product page",
      "url": "https://primacreator.com/products/primaselect-petg",
      "kind": "manufacturer"
    },
    {
      "title": "Bambu Lab PETG HF technical data sheet",
      "url": "https://store.bblcdn.com/ce12d65176a94f1086e6aefa238e62e2.pdf",
      "kind": "datasheet"
    },
    {
      "title": "Community source, r/prusa3d 1im3lgv",
      "url": "https://www.reddit.com/r/prusa3d/comments/1im3lgv/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 1weg5gw",
      "url": "https://www.reddit.com/r/BambuLab/comments/1weg5gw/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/3Dprinting 1wrzw8c",
      "url": "https://www.reddit.com/r/3Dprinting/comments/1wrzw8c/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 1hslyx9",
      "url": "https://www.reddit.com/r/BambuLab/comments/1hslyx9/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/BambuLab 1kefwx6",
      "url": "https://www.reddit.com/r/BambuLab/comments/1kefwx6/",
      "kind": "reddit"
    }
  ],
  "recommendations": [
    {
      "rank": 1,
      "note": "PolyLite PLA, US product page checked 14 October 2026. Nozzle 190–230 °C (374–446 °F), bed 25–60 °C (77–140 °F), drying at 55 °C (131 °F) for 6 h. The decorative-PLA comments do not add a new setpoint.",
      "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": 2,
      "note": "PrimaSelect PLA product page checked 20 October 2026. Nozzle 190–220 °C (374–428 °F) and bed 30–60 °C (86–140 °F). The heat-resistance dataset records HDT 57 °C (135 °F), ISO 75, and the page does not state the load.",
      "brand": "PrimaCreator",
      "product": "Primaselect PLA",
      "material": "PLA",
      "url": "/brand/primacreator/primaselect-pla",
      "nozzle": "190–220 °C (374–428 °F)",
      "bed": "30–60 °C (86–140 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    },
    {
      "rank": 3,
      "note": "Bambu PETG HF technical data sheet, checked 15 October 2026. Nozzle 230–260 °C (446–500 °F), bed 65–75 °C (149–167 °F), drying at 65 °C (149 °F) for 8 h. This is the functional PETG row, not a figurine profile.",
      "brand": "Bambu Lab",
      "product": "PETG HF",
      "material": "PETG",
      "url": "/brand/bambu-lab/petg-hf",
      "nozzle": "230–260 °C (446–500 °F)",
      "bed": "65–75 °C (149–167 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://store.bblcdn.com/ce12d65176a94f1086e6aefa238e62e2.pdf",
      "affiliateUrl": null
    },
    {
      "rank": 4,
      "note": "PrimaSelect PETG product page checked 20 October 2026. Nozzle 225–245 °C (437–473 °F) and bed 70–80 °C (158–176 °F). HDT on the heat-resistance dataset is 69 °C (156 °F), ISO 75, load not stated.",
      "brand": "PrimaCreator",
      "product": "Primaselect PETG",
      "material": "PETG",
      "url": "/brand/primacreator/primaselect-petg",
      "nozzle": "225–245 °C (437–473 °F)",
      "bed": "70–80 °C (158–176 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    }
  ]
}