The Ceramic Blanket have the same excellent chemical stability compared with their raw materials. It has excellent strength before and after heating. It has superior acoustic as well as thermal insulation characteristics. The wide range of available densities allow for the most effective deployment of the superior thermal characteristics in a wide variety of applications.


  • Furnace and kiln linings.
  • Boiler insulations.
  • Heat treatment temperature control.
  • Glass furnace crown insulation.
  • Furnace door seals.
  • Duct linings.
  • Pipe insulations.
  • Thermal barriers for automotive industry.
  • Fire protection.
  • Die cut shapes for domestic applications.
  • Insulation for field stress relieving of welds.
  • High temperature filter media.
  • Nuclear insulation applications.
    Steam and gas turbines insulation.


Excellent insulating performance
Unaffected by Most Chemicals

Unaffected by most chemicals except hydrofluoric and phosphoric acids and strong alkalises.

Thermal Stability
Excellent thermal stability: fibers have good resistance to devitrification

Resistance to thermal shock

Sound Absorption

Goods sound absorption.

Thermal Conductivity W/(m.k)
  • -50 to +50°C
  • 0.031 to .045 W/mK over the range
Product Range
Available thickess is 13, 25 and 50mm


  • For some applications, it is possible to use Cerachrome Blanket above its classification temperature (shrinkage is 5% at 1500°C).
  • Low heat storage.
  • The combination of long spun fibres and the needing operation produce tough, resilient and strong blankets which resist tearing both before and after heating.

Characteristics and Specs

Lightweight, low thermal conductivity, high temperature stability, excellent handling strength, low heat storage, thermal shock resistant, fire and flame proof, chemical resistant, compatible with most corrosive chemicals, commonly used acid and alkali (exceptions are hydrofluoric, phosphoric acids and concentrated

Chemical Composition: Al2O3 + SiO2 >97% ( Al2O3 47%);
Fe2O3< 1%

Fiber Diameter: 3 – 4.5 microns

Fiber Shrinkage (1800°F, 3h): < 3.5%

Working Temperature : 1,800 °F. for Continuous Use, 2300 °F

Specific Heat (@2000°F): 0.27 Btu/lb °F

pH Range: 2-12

Physical Properties

Product Sizes and Variants

  • Density: 4, 6, 8 lbs./cu. ft. (64, 96, 128 kg/m3)
  • Thickness: 1/4″, 1/2″, 1″, 1-1/2″,2″ Width: 24″ and 48″
  • Also available with aluminum foil back

Handling and Storage

  • It is highly unlikely that the products will cease significant amounts of dust during normal handling.
  • Dust control measures will rarely required in circumstances involving the fabrication of products from the material.
  • However according to good working practices the production of debris should be minimized. Use suction where possible to collect dust.
  • Clean waste with HEPA filter vacuum cleaner.
  • Observe emission limits. (See Section 8) tore in a dry place.