PPA-CF vs PA6-CF?

Does anyone have experience printing PPA-CF and PA6-CF? I had read that “PPA-CF is 48% stronger” than PA6 if you get good layer adhesion, but I’m seeing conflicting info regarding impact resistance. Anyone have input who’s printed and used both?

  • sir_obitusEnglish
    1·
    2 days ago

    What about PAHT-CF? Seems underrated. Tensile properties look good.

    • KopsisEnglish
      4·
      2 days ago

      There’s no such thing :) PAHT is a marketing department invention, not an actual polymer. It’s usually either PA12 or PPA, but you need to check with the manufacturer to find out what you’re really getting.

      • sir_obitusEnglish
        1·
        19 hours ago

        I’m not an expert but comparing the strength tests and water absorption it seems like a potentially better option than PA6/12. I think I’ll test it with a print and use PET-CF for the non-heat sensitive parts.