Strength
What filament should I use for hooks, brackets and load-bearing parts?
First in this ranking: Prusament PETG.
- Nozzle240–260 °C(464–500 °F)
- Bed70–90 °C(158–194 °F)
- Speedup to 200 mm/s
- Dry55 °C(131 °F)for 6 hManufacturer drying table →
- Density1.27 g/cm³
Speed. Source: Prusament TDS
Drying. Source: Prusament TDS · Last checked 18 October 2026
Ranked filaments
| Rank | Filament | Material | Nozzle | Bed | Datasheet | Buy |
|---|---|---|---|---|---|---|
| 1 | Prusament · PETG | PETG | 240–260 °C (464–500 °F) | 70–90 °C (158–194 °F) | Datasheet | |
The catalog row lists a nozzle of 240–260 °C (464–500 °F) and a bed of 70–90 °C (158–194 °F). Prusa's PETG article, a different document, recommends 230 °C (446 °F) on the first layer and 240 °C (464 °F) after that, with a bed of 85 °C (185 °F) then 90 °C (194 °F), and names holders and clamps as the use. | ||||||
| 2 | Prusament · ASA | ASA | 250–270 °C (482–518 °F) | 100–120 °C (212–248 °F) | — | |
The Open Filament Database row lists a nozzle of 250–270 °C (482–518 °F) and a bed of 100–120 °C (212–248 °F). Prusa's ASA article recommends 260 °C (500 °F) and a bed of 105 °C (221 °F) then 110 °C (230 °F), and lists temperature resistance up to 93 °C (199 °F). Large ASA parts want an enclosure, and the article says the material releases styrene fumes. | ||||||
| 3 | Prusament · PLA | PLA | 205–225 °C (401–437 °F) | 40–60 °C (104–140 °F) | — | |
Listed so the temperature is on a row, not as the hook plastic. The catalog lists 205–225 °C (401–437 °F) and a bed of 40–60 °C (104–140 °F). Prusa's PLA article uses a different profile, 215 °C (419 °F) then 210 °C (410 °F) and a 60 °C (140 °F) bed, and says PLA is not for technical or outdoor use. | ||||||
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Print hooks, brackets, and clamps in PETG when the part stays in the range Prusa calls suitable for interior and most exterior use below 80 °C (176 °F). Step up to ASA when you need the UV and temperature resistance Prusa lists, up to 93 °C (199 °F), and you can ventilate the printer. Leave PLA for models that are not holding a load. Strength, heat, PETG printing, and PLA printing cover the rest of those choices.
What the maker pages actually say
Prusa's PLA article says PLA is not suitable for technical and outdoor use. It gets soft and deforms at temperatures over 60 °C (140 °F), and it breaks along layers or into shards on impact. The best use they name is concept models, prototypes, and low-wear toys. Their profile on that page is 215 °C (419 °F) for the first layer, 210 °C (410 °F) after that, and a 60 °C (140 °F) bed. Prusament PLA in the catalog is a different pair, 205–225 °C (401–437 °F) and 40–60 °C (104–140 °F), from the Open Filament Database.
Prusa's PETG article calls PETG suitable for technical parts, including holders and clamps, and says parts are suitable for interior and most exterior use below 80 °C (176 °F). They print parts of their own printers in PETG. The article's profile is 230 °C (446 °F) then 240 °C (464 °F), with a bed of 85 °C (185 °F) then 90 °C (194 °F). Prusament PETG lists 240–260 °C (464–500 °F) and 70–90 °C (158–194 °F). For a tougher part they say turn the fan off, and add perimeters rather than infill. PolyLite PETG is another published PETG row if you are not on a Prusa profile.
Prusa's ASA article lists UV resistance and temperature resistance up to 93 °C (199 °F), and says ASA is for outdoor and technical parts. The profile there is 260 °C (500 °F) and a bed of 105 °C (221 °F) then 110 °C (230 °F). Prusament ASA lists 250–270 °C (482–518 °F) and 100–120 °C (212–248 °F). The same article says ASA releases potentially dangerous fumes, names styrene in the cons list, and says large parts need an enclosure. Fumes is that limit. Prusament is the brand index.
What the supplied threads do
r/3Dprinting 1afdylq is a bet on how fast a PLA bottle holder sags. The score-2 comment says a day or two for regular PLA and a couple of perimeters. It does not measure the bottle, the temperature, or the wall count. Do not treat "a day or two" as a material spec.
r/3Dprinting skq3dn is underextrusion. The score-10 comment says the print recovered after OctoPrint was removed. That is a feed path.
r/functionalprint 1k40i3y is a desk headphone hook in Fiberon PETG-rCF. The score-24 comment asks what the design does that other holders do not. It is not a material vote. Carbon fiber is where a fiber-filled PETG belongs if you print one.
Pros and cons
Pros
- PETG is the material Prusa uses for printer parts and names for holders and clamps.
- ASA is the step up when the part sees sun or heat past PETG's below-80 °C (176 °F) outdoor note.
Cons
- The five supplied threads do not compare hook plastics. One score-2 comment guesses a day or two for regular PLA.
- ASA's catalog nozzle starts at 250 °C (482 °F), and the article warns about styrene fumes.
Printer considerations
- Prusa's ASA article says an enclosure is necessary for large parts, and that a draft while you ventilate the room hurts the print. The fume warning is on the fumes page.
- Prusa's PETG article says more perimeters make a more solid part, and that the fan can come off when the part has to be as tough as possible. Those are process notes, not a strength rating.
- The catalog has no load rating for a printed hook. A bottle holder in r/3Dprinting 1afdylq is a PLA creep photo, not a test method.
What the community says
r/3Dprinting 1afdylq asks how long PLA will take to sag under a bottle. The score-2 comment says a day or two, assuming regular PLA and a couple of perimeters, and says it could be better with strength settings and the type of PLA. That is a guess, not a measured creep time. r/3Dprinting skq3dn is spongy extrusion, not a bracket. r/functionalprint 1k40i3y shows a headphone hook printed in Fiberon PETG-rCF. The score-24 comment asks how the design differs from other holders. It does not pick a filament. No excerpt was supplied for r/BambuLab 1czxpkp or r/FixMyPrint 1dz9tey, so this page does not quote them. The bank titles around those links are PLA waste and stringing.
- Community source, r/3Dprinting 1afdylq
- Community source, r/3Dprinting skq3dn
- Community source, r/functionalprint 1k40i3y
- Community source, r/BambuLab 1czxpkp
- Community source, r/FixMyPrint 1dz9tey
Sources & notes
Accessed 19 October 2026.
- Prusa Knowledge Base, PLA manufacturer
- Prusa Knowledge Base, PETG manufacturer
- Prusa Knowledge Base, ASA manufacturer
- Prusament PETG technical data sheet datasheet
- Open Filament Database, Prusament ASA other
- Open Filament Database, Prusament PLA other
- Community source, r/3Dprinting 1afdylq reddit
- Community source, r/3Dprinting skq3dn reddit
- Community source, r/functionalprint 1k40i3y reddit
- Community source, r/BambuLab 1czxpkp reddit
- Community source, r/FixMyPrint 1dz9tey reddit
Related questions
- How do I get good PLA prints?PLA
- How do I get good PETG prints?PETG
- Are ABS/ASA fumes dangerous, and do I need ventilation?ABS
- What filament should I use for heat?Heat resistance
- What filament should I use for a strong part?Strength
Questions
Does the score-2 comment prove PLA fails in a day?
No. It assumes regular PLA and a couple of perimeters, and it does not name a load or a temperature. Prusa's own line is the usable one: PLA softens and deforms over 60 °C (140 °F) and is not for technical use.
Should a hook be PETG-CF because one photo used Fiberon PETG-rCF?
That print is one design photo. The comment under it asks about the model, not the fiber. Carbon-fiber grades are on the carbon-fiber page, and they need a hardened nozzle.