3 mm thick
The product Original-TECHNO® - Fibreglass Strip is known under several different names. Examples of these names are heat protection strip, heat protection fabric or sealing strip. Sometimes even glass fabric, exhaust fibre or fibre glass fabric strip.
Don't get confused by the different titling.
Organic binders, which are necessary for the production of the heat protection, will dissolve at 200°C. (392°F; 473,15°K)