High Temperature Boards

Superwool® Plus Board
Lightweight High-Temperature Insulation with Improved Handling Characteristics

Superwool® Plus Board is a rigid, self-supporting insulation board manufactured from advanced low biopersistent fibre technology. Designed for industrial high-temperature applications, it provides excellent thermal insulation performance, low heat storage and good mechanical strength.

With low thermal conductivity, thermal shock resistance and excellent machinability, Superwool® Plus Board is suitable for furnaces, kilns, ovens, flues, ducting, heat shields, expansion joints and molten metal processing applications.

Product Highlights:

• Classification Temperature: 1200°C
• Continuous Use Temperature: 1000°C
• Density: 330 kg/m³
• Colour: White
• Sizes & Thicknesses: Available to specification — contact us with your requirements when submitting a quote request

Key Benefits:

• Very low thermal conductivity for effective thermal insulation
• Low heat storage for faster thermal response
• Good thermal shock resistance in cyclic heating applications
• Rigid, self-supporting construction
• Easy to cut, machine and fabricate
• Excellent resistance to most chemical attack
• Non-wetting to molten aluminium
• Thermal and physical properties are restored after drying if exposed to water, steam or oil

Common Applications:

• Furnace, kiln and oven linings
• Backup insulation behind firebrick and refractory linings
• Flue and chimney insulation
• Hot gas duct linings
• Molten aluminium processing equipment
• Expansion joints, seals and gaskets
• Heat shields and thermal barriers
• Industrial heat processing equipment

Performance Overview:

• Thermal Conductivity: 0.05 W/m·K at 200°C
• Compressive Strength: 0.3 MPa
• Modulus of Rupture: 0.8 MPa
• Permanent Linear Shrinkage: 2.5% at 1100°C

Superwool® Plus Board is often selected where users require lightweight high-temperature insulation with low thermal conductivity, good machinability and improved handling characteristics compared with traditional refractory insulation materials.

For alternative high-temperature insulation boards, see Millboard or Ceramic Fibre Board.