polypropylene

[Bacon Wizard]

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

[maddox10]

Tad heavier than HDPE. Cheaper than polycarb.

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

[Bacon Wizard]

[QUOTE=maddox10;441731

more brittle than hdpe.[/QUOTE]

Well it can bugger right off, then. tah

[maddox10]

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

[Max]

could PTFE or PEEK be used as armour?

[PJ-27]

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

[Bacon Wizard]

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

[daliad100]

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.

[RogueTwoRobots]

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

[maddox10]

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.