Graphite Hard Felt

Graphite Rigid Felt (or Graphite Hard Felt) is like a "super insulation board" specially designed for extreme high-temperature environments. It is a sturdy material made from carbon fibers that are cured with special resins, pressed, and then treated at ultra-high temperatures. Compared to soft insulation felt, its biggest feature is being self-supporting. It is rigid enough to stand stably in a high-temperature furnace without extra support, ensuring it won't warp or sag