High temperature silicone is a great material. The trick is attaching it to heat seal tooling. Find out why this is & what can be done about it. Also learn about a rubber-to-metal bonded silicone sheet material.
Silicone 60 Rubber Sheet - Heat Resistant
ISM
Silicone Rubber Sheet with PSA Adhesive Backing, 60A
Anti Skid Rubber Pads Adhesive Backed
Rubber & plastic sheets, adhesive backed rubber sheet
Anti Skid Rubber Pads Adhesive Backed
High Heat Tolerant Silicone Rubber Sheets Now Available through
Sil-Poxy™ Product Information
Don't glue Silicone rubber, BOND Silicone rubber
PUR Adhesives Confirmed to Work With Silicone Rubber Sheets in
ISM
How to bond silicone rubber - GA Lindberg
Rubber to Metal Bonding: Products, Applications, Benefits, and Process