{
  "opening": "Fiberlogy PP lists a glass transition of -31 °C (-24 °F). Its notched Charpy figure is 30 kJ/m² at 23 °C (73 °F), not at a freezing temperature. PolyLite PLA's glass transition is 61 °C (142 °F). None of these sheets states a cold-impact result.",
  "question": "What filament handles cold/freezing temperatures?",
  "slug": "freezer",
  "useCase": "outdoor",
  "useCaseLabel": "Outdoor",
  "updated": "2026-10-26",
  "shortAnswer": "Fiberlogy PP lists a glass transition of -31 °C (-24 °F). Its notched Charpy figure is 30 kJ/m² at 23 °C (73 °F), not at a freezing temperature. PolyLite PLA's glass transition is 61 °C (142 °F). None of these sheets states a cold-impact result.",
  "recommendedMaterials": [
    "pp",
    "pla",
    "petg"
  ],
  "printerConsiderations": [
    "Glass transition is the temperature where the plastic changes between glassy and rubbery. It is not a Charpy test, and it is not a minimum service temperature.",
    "Fiberlogy's impact number is at 23 °C (73 °F). PolyLite PLA and PolyLite PETG do not list an impact temperature at all in the heat dataset."
  ],
  "pros": [
    "The only sub-zero figure on the pages read for this question is Fiberlogy's glass transition, and it stays labeled as glass transition.",
    "The Charpy temperature is written next to the Charpy number, so 23 °C (73 °F) cannot be slid down to a freezer."
  ],
  "cons": [
    "No datasheet in this set gives a cold-impact figure.",
    "The highest-scored comments is about unsticking a print with IPA and ice, not about a part that lives in a freezer."
  ],
  "community": "The editorial summary says PETG and TPU handle cold better than PLA, which becomes brittle. The excerpts do not say that. r/FixMyPrint u150hn, score 46, is a solved note about dental floss, IPA, a cloth, and cooling elements used to release a print. Score 3 says you could put ice on the glass instead of using a freezer. r/prusa3d 1880k5e, score 25, says lemme get my popcorn. Score 8 says if it is not touching food directly they would not worry about foodsafe. No excerpt was supplied for r/3Dprinting sheify, r/FixMyPrint tykd8s, or r/3Dprinting 1ixj2ke.",
  "related": [
    "brittle",
    "outdoor",
    "flex"
  ],
  "faq": [
    {
      "q": "What filament handles cold/freezing temperatures?",
      "a": "Fiberlogy PP lists a glass transition of -31 °C (-24 °F). Its notched Charpy figure is 30 kJ/m² at 23 °C (73 °F), not at a freezing temperature. PolyLite PLA's glass transition is 61 °C (142 °F). None of these sheets states a cold-impact result."
    },
    {
      "q": "Does a glass transition of -31 °C (88 °F) mean the part survives a freezer?",
      "a": "It means Fiberlogy published -31 °C (88 °F) as the glass transition. The impact number on that same page is 30 kJ/m² at 23 °C (73 °F). [Brittle filament](/answers/brittle) is about spools that snap. [Outdoor filament](/answers/outdoor) is sun and weather. [Flexible filament](/answers/flex) is the bend page. None of those is a freezer impact test."
    },
    {
      "q": "Is PLA's 61 °C (142 °F) a cold rating?",
      "a": "No. 61 °C (142 °F) is PolyLite PLA's glass transition, a warm-softening figure. PolyLite PETG's glass transition on the same dataset is 81 °C (178 °F). A higher warm-softening temperature is not evidence about freezing."
    }
  ],
  "sources": [
    {
      "title": "Fiberlogy PP product page",
      "url": "https://fiberlogy.com/en/filaments/pp-en/pp-pp-en/",
      "kind": "manufacturer"
    },
    {
      "title": "Polymaker PolyLite PLA technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PLA_TDS_EN_V5.4.pdf",
      "kind": "datasheet"
    },
    {
      "title": "Polymaker PolyLite PETG technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PETG_TDS_EN_V5.4.pdf",
      "kind": "datasheet"
    },
    {
      "title": "Community source, r/FixMyPrint u150hn",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/u150hn/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/prusa3d 1880k5e",
      "url": "https://www.reddit.com/r/prusa3d/comments/1880k5e/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/3Dprinting sheify",
      "url": "https://www.reddit.com/r/3Dprinting/comments/sheify/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/FixMyPrint tykd8s",
      "url": "https://www.reddit.com/r/FixMyPrint/comments/tykd8s/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/3Dprinting 1ixj2ke",
      "url": "https://www.reddit.com/r/3Dprinting/comments/1ixj2ke/",
      "kind": "reddit"
    }
  ],
  "recommendations": [
    {
      "rank": 1,
      "note": "Product page read 26 October 2026 lists a glass transition of -31 °C (88 °F), a notched Charpy impact of 30 kJ/m² at 23 °C (73 °F) under ISO 179, heat-deflection of 51 °C (124 °F) at 0.45 MPa under ISO 75, and Vicat 110 °C (230 °F) under ISO 306. No impact figure below 0 °C (32 °F) is on that page.",
      "brand": "Fiberlogy",
      "product": "PP",
      "material": "PP",
      "url": "/brand/fiberlogy/pp",
      "nozzle": "210–240 °C (410–464 °F)",
      "bed": "80–100 °C (176–212 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    },
    {
      "rank": 2,
      "note": "Heat dataset, checked 21 October 2026, lists glass transition 61 °C (142 °F), HDT 60 °C (140 °F) at 0.45 MPa and 58 °C (136 °F) at 1.8 MPa, ISO 75. Nozzle 190–230 °C (374–446 °F) and bed 25–60 °C (77–140 °F). No cold-impact figure is stored.",
      "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": "Heat dataset, checked 21 October 2026, lists glass transition 81 °C (178 °F), HDT 78 °C (172 °F) at 0.45 MPa and 75 °C (167 °F) at 1.8 MPa, ISO 75. Nozzle 220–250 °C (428–482 °F) and bed 70–90 °C (158–194 °F). No cold-impact figure is stored.",
      "brand": "Polymaker",
      "product": "Polylite PETG",
      "material": "PETG",
      "url": "/brand/polymaker/polylite-petg",
      "nozzle": "220–250 °C (428–482 °F)",
      "bed": "70–90 °C (158–194 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0548/7299/7945/files/PolyLite_PETG_TDS_EN_V5.4.pdf",
      "affiliateUrl": null
    }
  ]
}