I am looking for 0.125"( ~3mm thk) sheets of silicone that could be die cut into shapes.
I have seen some molded silicone used as handles on bakeware
Are there vendors that supply silicone sheets or elastomers in sheet form that can withstand high temperature?
dunno how much you need, but ive seen small sheets in hobby stores that are meant to be used as a mat for glue/soldering guns, and the like. of course you’ll payretail, but if you just need a bit for a project, could be a way to go. they are usually mikly white, and can do hot temps no prob. the thickness is about what you are looking for and should be fine for die cutting depending on what kinda tool you have.
if you just need a few yards for a project, check out silicone baking sheets.
They are meant to replace teflon, grease or cooking spray when baking on a cookie sheet.
The original name brand was silpat, they were reinforced with fiber but there have been a ton of other companies making similar products.
we have used them to make our own gaskets for a few projects