Router Forums banner

Machining UHMW plastic

5703 Views 4 Replies 5 Participants Last post by  59405
I am told that the UHMW, (the white slicky plastic), machines well. but how quickly does it dull planer and jointer knives? Is it sandable? I have no experience with this stuff and would llike to here from those that do.
1 - 5 of 5 Posts
Have noticed no adverse effects on my planer or joiner knives, but cupping does occur in the planer process if you try to strip off to much material at one time. Sands well. I use poly glue & SCREWS because this stuff does not bond well at all. I purchased a special two part glue from a marine dealer, "liquid marinetex" but have not tried to use it yet. Anxious to read other responses to your question.
UHMW machines similar to wood and is easy on the tools. In addtion to what has been said, thin pieces(less than 1') need to be supported or they will curve(warp ?) a great deal. HD polyethylene is cheaper and works about as good. I have used super glue as well as epoxy to adhere polyethylene. Good luck.


UHMW is a great plastics for sliding applications and has excellent wear resistance. It does creep or bend but just don't leave it hanging around. I have been trying to find a place to but UHMW. Found a website called hightechplastics They have both rod and sheet. Bought some to make some wear pads. It's great stuff.

I find irregular bits and pieces at my local surplus store. I know it planes and saws nicely. I use it for the guides on my crosscutting sled because I can fit it very, very closely in the miter guage slots.
1 - 5 of 5 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.