Protega SuperWool is a mineral wool rug / strip that is used as backing material for fire sealing.

Protega SuperWool has an outstanding insulation capacity at high temperatures. It also has excellent thermal stability and retains its soft structure up to the highest continuous operating temperatures.

Extremely low thermal conductivity, heat shock resistance and good sound insulation are other characteristics.

A flexible insulation, easy to cut, shape and easy to install.

Safety data sheet

You can find this product at retailers