PTFE Film is 0.002 thick, relatively rugged, but much more easily torn than our 0.005" PTFE..  It's Teflon, so of course it has great temperature and chemical properties; this is great for lots of places in the shop or factory, but also kitchen, sewing, garage.  At well under $2/sf it's disposable after it's served its purpose, whether in a curing oven, heat transfer, lamination or for drying painted/glued items.