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What is the correct name for this plastic?

I have seen this stuff used by machinists for jig making and small parts. What is the professional name for this plastic? I thought it might be ABS plastic but i dont know for sure



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ringai3 years ago
Delrin ;-)

Want to share?
SlickSqueegie (author) 3 years ago
Here is what i picked up today...
image.jpgimage.jpg
Teflon
Dont think so... Teflon is normally quite non-shine-trough and brilliant white. And in the image posted i can see some shine-trough (especially in the shorter round piece and on the edged of the block).
I just checked teflon-blocks in our mecahnical workspace and it looks different... Much more like a pressed block of very white flour...

But from the looks it could be POM (Acetal) without carbon if i compare the image to the stocks at the workspace. We have white and black POM (Acetal) while the black one is slightly electro-conductive to fight ESD (electrostatic discharge). Our mechanical guy told me that POM is quite common and available from all sizes up to huge blocks.
Also not this expensive, but not cheap either. For a DIY a perfect find since it is very simple and easy to work with.
SlickSqueegie (author)  Orngrimm3 years ago
Forgive my ignorance. What does the term "shine-trough" mean?
Hahaha!
Ok: My bad.
See, i am not native english-speaking... So with a some words i try to make a word-by-word-translation... And sometimes that doesnt work... Like in this case.

"translucent" is the word i was searching an didnt find in the back of my head. in this case, translucent is even maybe a bit strong... "Mildly translucent" may fit better.

--> Not your ignorance but my lack of knowledge in the english language. :)
SlickSqueegie (author)  Orngrimm3 years ago
Oh, I understand now...
Here is a link to a bowl made with a piece of it.
http://www.instructables.com/id/Lathe-turned-plastic-bowl/
Ah! Nice! And i still say: If i look how translucent (i start to like that word!) the bowl is if you see the candle in it... Thats (i would say) no PTFE for sure. Too translucent.
But maybe someone will come up and explain that there is also translucent teflon. I dont know if thats the case, have never seen any translucent PTFE...

Do you have some turnings/flakes from the built left? Try to ignite them over a normal candle. If they burn, it is no Teflon for sure. They can melt if Teflon, since a candle is 800-1400°C and PTFE melts at 327°C... But burning teflon? Nah.

Teflon comes in different colors I have had red green white and blue along with different shades. Most times the difference is due to the Teflon being made for specialized jobs like ballistic tips.

Joe
Ah... OK... Never seen/used other PTFE than natural white.
But still: The shine-trough is a bit off-teflon i think. But you seem to be more experienced with that plastic than me. :)
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