Quote:
Originally Posted by Showdown
I’ve played around with a lot of filaments trying to find heat tolerant ones and what I’ve found is that PA6GF or CF, PAHT-CF or PET-CF are all great.
Bambu has a wonder filament PPA-CF that is stable up to 227 Celsius and has properties that rival and sometimes exceed aluminum. But it’s $150 a kilo!
https://us.store.bambulab.com/products/ppa-cf
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There are now a few different brands for PPA-CF, all very similar properties, probably many produced by the same suppliers anyway.
Siraya Tech even has a "core" version, where the carbon particles are wrapped inside an outer layer of PPA only, which theoretically gives it better layer adhesion.
Also better price at "only" $88 per kilo.
MyTechFun on Youtube has some good comparison videos, I think all 5+ different PPA-CFs he tested hold up to 220°C heat and should be strong enough for most applications like heater ducts.