It is 2mm thick. The gasket in the picture we have cut as an example. It is very easy to cut with a pair of scisors.
Stove door glass seal ,Flue pipe gasket material 2mm thick 295mm x 160mm
Stove Door Glass Seal ,Flue Pipe Gasket/material 2mm Heat Resistant Up To 1200°C
Ceramic Paper Stove Door Glass Seal & Flue Pipe Gasket Material 3mm A4 Sheet
2MM INSULFRAX S PAPER STOVE DOOR GLASS SEAL FLUE PIPE GASKET MATERIAL A4 Sheet
3MM TSEC PAPER STOVE DOOR GLASS SEAL FLUE PIPE GASKET MATERIAL A4 Sheet
Stove door glass seal ,Flue pipe gasket material 3mm x 295mm x 160mm