Bubble alumina is a lightweight, insulating refractory material made from alumina (aluminum oxide) bubbles and refractory cement. It’s commonly used in castable applications for its unique properties. This unique material brings a host of benefits to the table, revolutionizing the way we approach high-temperature applications.

Key Features

• Low Density: Compared to solid refractory materials, bubble alumina has a significantly lower density (around 1500 kg/m³), making it lighter and easier to handle. This translates to reduced weight load on structures and potentially improves energy efficiency.

• High Insulation: The hollow ceramic bubbles within the material provide excellent thermal insulation, reducing heat loss and energy consumption in high-temperature applications.
  Good Refractoriness: Bubble alumina typically has a maximum use temperature of around 1800°C (3272°F), making it suitable for various high-temperature processes.

• Easy Installation: As a castable material, bubble alumina can be mixed with water and readily poured into desired shapes, offering versatility and simplifying installation compared to pre-formed refractory bricks.

Applications

• Furnace linings and insulation.

• Kiln and oven insulation.

• Boiler refractory linings.

• Molten metal handling equipment.

• High-temperature piping and ductwork insulation.

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