Got a request for a food grade gasket that will handle ~250 deg. F and neither degrade nor get soft when exposed to alcohols like methanol and ethanol at those temperatures (goes between a window that looks into a reflux condenser on a still and its brass housing). I figured that sheets of that high temperature plastic that they use for modern spatulas that you can use in a fry pan and not melt would be a good place to start. But after some Google work which either gives me way too much or no information, I'm not finding what kind of plastic it is so I'm tossing it to you guys. Any suggestions what the material is called and where I'd find 1/8" - 1/4" sheet stock?
Thanks
Jim