I need to cut very thin plastic on a semi-regular basis, and it needs to be clamped down to a flat surface. It comes in rolls and holds the curve quite a bit; my usual "use some weights" trick doesn't work.
I used MDF to cut some last night and it worked fine for cutting, but the MDF "goo" deposited onto the plastic and required a lot of cleaning to get it out of the nooks and crannies. I need something that'll absorb the beam with little or no outgassing.
My best guesses are glass or anodized aluminum. Any thoughts on those? Glass will absorb it but I worry about thermal cracking if I use it a bunch. Theoretically not a ton of beam is making it through the material but there will always be a small amount.