The Wonders of Ceramic Fiber Boards: Exploring Aluminium Silicate and 1260°C Variants

May 27, 2023

Ceramic fiber boards have gained considerable attention in recent years due to their outstanding thermal and mechanical properties. These boards are made from refractory fibers and find a wide range of applications in industries requiring high-temperature insulation and lining. In this blog post, we will discuss two significant types of ceramic fiber boards: aluminium silicate ceramic fiber board and 1260°C ceramic fiber board. Let’s delve into their unique properties, applications, and benefits.

Refractory insulating ceramic fiber modules

What is a Ceramic Fiber Board?

A ceramic fiber board is a rigid and lightweight insulating material made from high-quality ceramic fibers, binders, and additives. These boards are known for their excellent thermal stability, low thermal conductivity, and resistance to thermal shock. They are widely used in industries such as steel, petrochemical, and glass, where high-temperature insulation and protection are crucial.

Aluminium Silicate Ceramic Fiber Board: Properties and Applications

Aluminium silicate ceramic fiber board are manufactured from high-purity alumina-silica fibers, which give them unique properties that make them ideal for various applications. Some of the essential properties of aluminium silicate ceramic fiber boards include:

  • High-temperature resistance: These boards can withstand temperatures up to 1,400°C (2552°F) without losing their structural integrity.
  • Low thermal conductivity: Aluminium silicate ceramic fiber boards exhibit low thermal conductivity, making them excellent insulators.
  • Resistance to thermal shock: The boards can handle rapid temperature changes without cracking or breaking, making them ideal for environments with frequent temperature fluctuations.

Aluminium silicate ceramic fiber boards find applications in a variety of industries, including:

  • Furnace and kiln linings
  • Backup insulation for refractory bricks and castables
  • High-temperature gaskets and seals
  • Insulation for industrial heaters and heat exchangers
  • Combustion chamber insulation


1260°C Ceramic Fiber Board: Properties and Applications

The 1260°C ceramic fiber board is another popular variant, designed to withstand high temperatures up to 1,260°C (2,300°F). These boards are made of high-quality refractory fibers and possess similar properties to aluminium silicate ceramic fiber boards. Key features of 1,260°C ceramic fiber boards include:

  • Excellent thermal stability: The boards maintain their dimensions and mechanical properties even after prolonged exposure to high temperatures.
  • Low heat storage: Due to their low thermal conductivity and low heat storage capacity, these boards help conserve energy in high-temperature applications.
  • Resistance to chemical attack: They are resistant to most chemicals, except for strong alkalis, phosphoric acid, and hydrofluoric acid.