... ,it can be used as heat insulating and sealing materials in 550 °C conditions. For higher loads, the round ... × 20 , 25 × 25 , 30 × 30 , 35 × 35 , 40 × 40 , 45 × 45 , 50 × 50Applications: Static door seals for boilers, ovens, furnaces, kiln ... properties of stable elastic and unbreakable. They are suitable for fillings and stopping expansion joints between boilers and masonry of brickwork, insulation ...