Ultra high molecular weight polyethylene


#1

Reading the msds I think this is ok to use; but I have very little experience with materials data sheets.
MSDS_UHMW.pdf (274.4 KB)
Anybody have any experience?

My brother wished to know, and I think he can send me a sample to play with. If that’s successful, I might become one of his contracted machine shops.


#2

Your primary nasty will be formaldehyde. Should be fine to cut safely wise but not everything that is safe is a good cut. Let us know how it does.


#3

If this is the same as HDPE, I read somewhere online it doesn’t lase particularly well (sort of melts around the cut). But does CNC mill quite well…


#4

Uhmw when machining is similar to delrin but more gummy, softer and really doesnt like heat. How that translates to lasers? Not sure but perhaps delrin setting may be a decent starting point for you


#5

Polyethylene is in the chart I posted at this link below. Safe, but melty.


#6

I think people have posted pics, and engraving is not pretty. Cuts are so-so. I have some, might try (although I kind hoard the stuff, since it’s not easy to come by around here.)


#7

Thanks guys.