[Arran]

Good thing I have a stash of mica, but then again I have a roll of flat nichrome heating element wire too, like the kind they have in toasters, the mica I will need in some quantity at least, the heater wire, I don't know, unless I end up with a vintage appliance I need to repair. By the way, you can find mica in a discarded hair dryer, though it is likely too thick, another possibility is an insulator from under a power transistor.
Regards
Arran