I cut some yupo paper (100% polypropylene) yesterday. I’m using what’s marketed as “Yupo Translucent” by Legion. I measured it with calipers to be .006" thickness. I got a pad of it from Blick.
I tried 3 settings and found 400 / 25 to be the best. Later in the day (with the GF hotter) I found 400 / 28 to work well.
Here are some test results:
You’ll notice 500 / 30 and 400 / 22 didn’t go quite all the way through everywhere, so there are little perforations (looks like tiny hairs) where it stuck. You do want it to be a little bit stuck so your piece doesn’t accidentally go flying. But 400 / 25 was the cleanest cut.
I held the material directly down on the crumb tray with magnets at the four corners.
I ended up expanding my design to compensate for a .008" kerf, but I didn’t measure this explicitly, just tried it out and got the fit I was looking for.
There was a tiny bit of singe (brown) on the edges, on the bottom side of the cut.