Welcome to a new InTheMail, the series that will touch both your passion for electronics and your bank account at the same time. We’re gonna start with this insulation sheet, this was listed as ceramic fiber insulation blanket and it’s suppose to withstand high temperatures. Up to what temperature? I don’t know because the listing didn’t contain that information but it did say that it could be used on stoves so I would guess up to 300 degrees Celsius.