You can get a stovepipe gasket that is 3mm thick x 10mm wide x 2m long.You can cut it into different lengths as needed, so a two meter length is enough to meet daily needs and replacements. The stove pipe seal is made of fiberglass and can withstand high temperatures up to 550°C.They have excellent insulation performance and high thermal stability.They are robust, flexible and tear-resistant. 【Easy to Use】Measure and cut the desired length, and the wires on the oven are self-adhesive.It is coated with a layer of heat-resistant double-sided tape, making it easy to use without the need for additional glue. The purpose of this smoke sealing tape is to lock in the temperature and prevent the temperature in the oven from dropping as much as possible.Suitable for ovens, stove pipes, oven doors, chimneys, etc. Your satisfaction with the shopping experience is our top priority.We believe that the stove pipe sealing will satisfy you, but if you have any questions about this type of stove pipe sealing, please contact us.