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Thread: polypropylene

  1. #1
    Never knowingly encountered it.. what's it like compared with HDPE and with Polycarb?

  2. #2
    Tad heavier than HDPE. Cheaper than polycarb.

    Harder and more brittle than hdpe. Less strong compared to polycarb.

  3. #3
    [QUOTE=maddox10;441731

    more brittle than hdpe.[/QUOTE]

    Well it can bugger right off, then. tah

  4. #4
    Anything is more brittle than HDPE. PP is useable for us. On the other hand, HDPE is just that little better in all respects.

  5. #5
    Max's Avatar
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    could PTFE or PEEK be used as armour?

  6. #6
    Since we're naming all the PE plastics what about PETG?

  7. #7
    I looked at PEEK, and it would appear to be excellent stuff, but the cost is eye-watering

  8. #8
    From experience it will hold up repeated bashing into a brick wall but not to a hammer which punched neat-ish circles out of it.

    Only a couple of mm thick though so in the 10+mm thickness you'll be likely to be using it should hold up.

  9. #9
    Of all the plastics I've worked with (Nylon 6, HDPE, RG1000, Polypropylene and Polycarb), PP is definitely my least favourite. I may not have been using it in the best way it's meant to be used, but the same applies to every other plastic I've used

  10. #10
    Quote Originally Posted by Max View Post
    could PTFE or PEEK be used as armour?
    PTFE is soft and heavy. As well expensive. I pay for "leftovers" €20 a kilo. Great stuff for seals and such, but not for load bearing parts.

    PEEK, never used it , so can't comment.

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