Heat resistance
What filament should I use for electronics enclosures?
By SSS
Published . Updated .
- Nozzle190–230 °C(374–446 °F)
- Bed35–45 °C(95–113 °F)
- Speedup to 300 mm/s
- Dry50 °C · 8 h(122 °F)
- Density1.24 g/cm³
Nozzle, Bed, Speed, Drying. Source: Bambu Lab TDS · Last checked 14 October 2026
Ranked filaments
| Rank | Filament | Material | Nozzle | Bed | Datasheet | Buy |
|---|---|---|---|---|---|---|
| 1 | Bambu Lab · PLA Basic | PLA | 190–230 °C374–446 °F | 35–45 °C95–113 °F | Datasheet | |
Technical data sheet checked 14 October 2026 lists a nozzle of 190–230 °C (374–446 °F), a bed of 35–45 °C (95–113 °F), and blast-oven drying at 50 °C (122 °F) for 8 h. No safety certification is listed. The score-27 comment's 100f limit is that commenter's words, not a figure on this sheet. | ||||||
| 2 | Polymaker · Polylite PETG | PETG | 220–250 °C428–482 °F | 70–90 °C158–194 °F | Datasheet | |
Open Filament Database, dataset imported 13 October 2026, lists a nozzle of 220–250 °C (428–482 °F) and a bed of 70–90 °C (158–194 °F). The technical data sheet, drying checked 18 October 2026, lists drying at 65 °C (149 °F) for 6 h. No electronics or flammability certification is stored. These comments do not. | ||||||
| 3 | Bambu Lab · ASA | ASA | 235–260 °C455–500 °F | 90–110 °C194–230 °F | Datasheet | |
Open Filament Database, dataset imported 13 October 2026, lists a nozzle of 235–260 °C (455–500 °F) and a bed of 90–110 °C (194–230 °F). The technical data sheet, checked 18 October 2026, stores drying at 80 °C (176 °F) for 8 h. No safety certification is listed. ASA near heat is the heat and ASA pages, not a result from these threads. | ||||||
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An electronics enclosure and a printer enclosure are different heat problems. The comments are the second one: printed parts that hold a printer box, and PLA that softens while the printer is closed. Heat resistance is how hot a finished part can get before the published deflection numbers. ASA printing and polycarbonate are the hotter print windows. Printer enclosure parts is the hardware those comments are actually about.
Settings on the rows
Bambu PLA Basic lists 190–230 °C (374–446 °F), a bed of 35–45 °C (95–113 °F), and drying at 50 °C (122 °F) for 8 h, sheet checked 14 October 2026. PolyLite PETG lists 220–250 °C (428–482 °F) and a bed of 70–90 °C (158–194 °F) in the Open Filament Database, dataset imported 13 October 2026, and drying at 65 °C (149 °F) for 6 h on the technical data sheet, drying checked 18 October 2026. Bambu ASA lists 235–260 °C (455–500 °F) and a bed of 90–110 °C (194–230 °F) in that same database import, and its sheet checked 18 October 2026 stores drying at 80 °C (176 °F) for 8 h. No safety certification is listed. PLA is first because the three-year comment names it. The order is not a ranking for a case around a board.
Pros and cons
Pros
- The useful comments are split: a low-load PLA printer enclosure, and heat creep while printing PLA inside a closed box.
Cons
- No row here publishes a glow-wire, flammability, or electronics-enclosure rating.
Printer considerations
- A comment says PLA in a partly closed enclosure got hot enough that the extruder teeth mangled it. calls that heat creep: the enclosure turns into a small oven and softens PLA before the hotend. That is a printing problem, not a rating for a finished box.
- A comment says black PLA parts on a printer enclosure had no issues after three years, and that the commenter is not dealing with temperatures above 100f or much load. The 100f figure is the comment. This catalog does not store it as a PLA limit.
- Polycarbonate's higher nozzle window is the polycarbonate page. Linking it does not mean these comments tested PC around a power supply.
Sources & notes
Published . Updated .
- Bambu PLA Basic technical data sheet datasheet
- Open Filament Database, Polymaker PolyLite PETG other
- Polymaker PolyLite PETG technical data sheet datasheet
- Open Filament Database, Bambu Lab ASA other
- Bambu ASA technical data sheet datasheet
- a Reddit thread in r/prusa3d reddit
- a Reddit thread in r/3Dprinting reddit
- a Reddit thread in r/prusa3d reddit
- a Reddit thread in r/3Dprinting reddit
- a Reddit thread in r/BambuLab reddit
Related questions
- What filament should I use for heat?Heat resistance
- How do I print ASA successfully?ASA
- How do I print polycarbonate (PC)?Polycarbonate
- What filament should I use for printer upgrade parts/enclosure parts?Troubleshooting
Related data
- Cheapest filament per kg
- Cheapest PLA per kg
- Will my dryer cover this filament?
- Drying dataset
- How long to dry PETG
- PLA drying temperature and time
- PETG drying temperature and time
- ASA drying temperature and time
Questions
Is PLA acceptable for a printer enclosure?
on r/prusa3d says that person's black PLA parts were fine after three years, and names a limit of temperatures above 100f and not much load. Those words are the comment. and on r/3Dprinting say PLA softens while you print it inside a closed box. Printer enclosure parts is that hardware. Heat resistance is the temperature page.
Should the box around a warm board be PETG or ASA?
These comments do not say. ASA printing and polycarbonate are the hotter polymers' print pages. Bambu ASA lists 235–260 °C (455–500 °F) and a bed of 90–110 °C (194–230 °F) in the Open Filament Database, dataset imported 13 October 2026. That is a nozzle window. It is not a clearance to put the plastic against a hot component.