{
  "opening": "Bambu TPU 85A lists a nozzle of 200–250 °C (392–482 °F), and this catalog stores shore 85. Bambu TPU 90A stores shore 90 on the same nozzle window.",
  "question": "What filament is best for phone cases?",
  "slug": "phone_case",
  "useCase": "flexible",
  "useCaseLabel": "Flexible",
  "updated": "2026-10-26",
  "shortAnswer": "Bambu TPU 85A lists a nozzle of 200–250 °C (392–482 °F), and this catalog stores shore 85. Bambu TPU 90A stores shore 90 on the same nozzle window.",
  "recommendedMaterials": [
    "tpu"
  ],
  "printerConsiderations": [
    "Shore 85 and shore 90 are catalog fields on the Bambu rows. 95A is a product name on the Prusament row.",
    "The Bambu bed stops at 35 °C (95 °F). Prusament's bed starts at 55 °C (131 °F). Those beds are not interchangeable.",
    "They do not say TPU."
  ],
  "pros": [
    "Hardness stays on the row that publishes it.",
    "The jokes stay jokes. They are not rewritten as a material test."
  ],
  "cons": [
    "No comments names TPU, PLA, or a brand. A best-case ranking would be invented."
  ],
  "community": "The editorial summary says TPU for phone cases. The excerpts do not name a material. r/3Dprinting 11u348w, score 50, asks why the print took that long and jokes about a magic beam at 3700. Score 30 thought the box would be too small. r/functionalprint 11u37q5, score 32, jokes about ten minutes in CAD. Score 19 says a coworker asked for a printed driver's license. No excerpt was supplied for r/prusa3d 11ukj4n, r/3Dprinting 130o6so, or r/ender3 13xtkus.",
  "related": [
    "flex",
    "tpu_hardness",
    "shoes"
  ],
  "faq": [
    {
      "q": "What filament is best for phone cases?",
      "a": "Bambu TPU 85A lists a nozzle of 200–250 °C (392–482 °F), and this catalog stores shore 85. Bambu TPU 90A stores shore 90 on the same nozzle window."
    },
    {
      "q": "So is 95A the phone-case grade?",
      "a": "Not from this batch. Prusament TPU 95A puts 95A in the name and does not store a separate shore field. Bambu's stored fields are 85 and 90. [TPU hardness](/answers/tpu_hardness) is the grade page. [Flexible filament](/answers/flex) is how TPU prints. [Shoes](/answers/shoes) is the other flex-against-a-body question. None of the comments here picks a grade."
    },
    {
      "q": "Did anyone in the comments actually name a case material?",
      "a": "No."
    }
  ],
  "sources": [
    {
      "title": "Bambu Lab TPU 85A technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0645/5876/0155/files/Bambu_TPU_85A_Technical_Data_Sheet_a7233668-497b-487f-af8a-3adb49fafaa1.pdf?v=1741314674",
      "kind": "datasheet"
    },
    {
      "title": "Bambu Lab TPU 90A technical data sheet",
      "url": "https://cdn.shopify.com/s/files/1/0645/5876/0155/files/Bambu_TPU_90A_Technical_Data_Sheet_582bf8f6-1f0a-474c-aeda-9e72af3689dc.pdf",
      "kind": "datasheet"
    },
    {
      "title": "Prusament TPU 95A product page",
      "url": "https://prusament.com/materials/prusament-tpu-95a/",
      "kind": "manufacturer"
    },
    {
      "title": "Community source, r/3Dprinting 11u348w",
      "url": "https://www.reddit.com/r/3Dprinting/comments/11u348w/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/functionalprint 11u37q5",
      "url": "https://www.reddit.com/r/functionalprint/comments/11u37q5/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/prusa3d 11ukj4n",
      "url": "https://www.reddit.com/r/prusa3d/comments/11ukj4n/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/3Dprinting 130o6so",
      "url": "https://www.reddit.com/r/3Dprinting/comments/130o6so/",
      "kind": "reddit"
    },
    {
      "title": "Community source, r/ender3 13xtkus",
      "url": "https://www.reddit.com/r/ender3/comments/13xtkus/",
      "kind": "reddit"
    }
  ],
  "recommendations": [
    {
      "rank": 1,
      "note": "Technical data sheet, drying checked 18 October 2026, lists a nozzle of 200–250 °C (392–482 °F), a bed of 30–35 °C (86–95 °F), and drying at 70 °C (158 °F) for 8 h. This catalog stores shore 85. The phone-case comments do not compare 85 with 90.",
      "brand": "Bambu Lab",
      "product": "TPU 85A",
      "material": "TPU",
      "url": "/brand/bambu-lab/tpu-85a",
      "nozzle": "200–250 °C (392–482 °F)",
      "bed": "30–35 °C (86–95 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0645/5876/0155/files/Bambu_TPU_85A_Technical_Data_Sheet_a7233668-497b-487f-af8a-3adb49fafaa1.pdf?v=1741314674",
      "affiliateUrl": null
    },
    {
      "rank": 2,
      "note": "Technical data sheet, drying checked 18 October 2026, lists a nozzle of 200–250 °C (392–482 °F), a bed of 30–35 °C (86–95 °F), and drying at 70 °C (158 °F) for 8 h. This catalog stores shore 90.",
      "brand": "Bambu Lab",
      "product": "TPU 90A",
      "material": "TPU",
      "url": "/brand/bambu-lab/tpu-90a",
      "nozzle": "200–250 °C (392–482 °F)",
      "bed": "30–35 °C (86–95 °F)",
      "pricePerKg": null,
      "datasheetUrl": "https://cdn.shopify.com/s/files/1/0645/5876/0155/files/Bambu_TPU_90A_Technical_Data_Sheet_582bf8f6-1f0a-474c-aeda-9e72af3689dc.pdf",
      "affiliateUrl": null
    },
    {
      "rank": 3,
      "note": "Open Filament Database nozzle 220–240 °C (428–464 °F) and bed 55–75 °C (131–167 °F), dataset imported 13 October 2026. The product name says 95A. This catalog does not store a separate shore field. Drying at 60 °C (140 °F) for 6 h is the Prusa material default, checked 18 October 2026.",
      "brand": "Prusament",
      "product": "TPU 95A",
      "material": "TPU",
      "url": "/brand/prusament/tpu-95a",
      "nozzle": "220–240 °C (428–464 °F)",
      "bed": "55–75 °C (131–167 °F)",
      "pricePerKg": null,
      "datasheetUrl": null,
      "affiliateUrl": null
    }
  ]
}