It is made by fiberglass used for welding blanket
Thermal Insulation, Heat Enclosures, Stress Relieving, Fire Blankets, Fire Curtains, Spark Retention, Furnace Curtains, Slag Containment, Industrial Curtains, Welding Blankets, Heat Enclosures, Custom Fabrication, Tailor Made Fabrication, Spark Barriers.
The thickness is 0.3mm - 1.2mm, temperature is