Fire blankets are high temperature fabrics made from either fiberglass fabrics or high silica fabrics or ceramic fabric having a temperature resistance between 550 °C to 1600 °C . Fiberglass fabrics can withstand continuously upto 550 °C but can work for welding sparks upto 1100 °C since that is the maximum temperature fiberglass can withstand at which it melts. High Silica fabrics can withstand continuously upto 1000 °C but can work for welding sparks upto 1600 °C . Ver