SoliBlanket™ HA-Grade

SoliBlanket HA-grade is exclusively developed on request of Vulcor to offer a 1370°C rated high temperature fiber blanket, without the use of zirconia. The high alumina content does not only improve the classification temperature, but also makes the fiber more stable in application with exposure to alkali. Testing at end customers in the USA has proven that the lifetime, compared to a RCF-Zr 1430 blanket in an application which was high in alkali, was nearly doubled.


SoliBlanket HA-grade is an unique product which is only offered by Vulcor Insulation. In normal production operations a spun fiber with such high alumina contents would be hard to manufacture. Typically, these type of high alumina blankets are offered in a ‘blown’-fiber technology which create a high shot and pretty coarse blanket. Utilizing our unique Ultra Low Shot technology we have been able to offer you this new product in a much improved version to what has been supplied in the market today.

SoliBlanket HA-grade is one of our special grade refractory ceramic fiber blankets in the SoliBlanket product range. The high classification temperature is the result of the high alumina content of the fiber. The SoliBlanket HA-grade has a classification temperature of 1370°C and is engineered to perform in a wide range of applications up till 1200°C continuously.

The Soliblanket HA-grade is stronger, feels more comfortable to handle and provides better thermal insulation than ‘blown’ fibers in a similar chemical composition. During installation our ULS technology fiber products offer a higher resiliency after compression, which is particularly important when making fiber modules or in case the blanket (strip) is installed perpendicular to the main fiber orientation, or in easier words; stack(bonded).

SoliBlanket HP-grade is part of the SoliBlanket product range. With a variety of five Refractory Ceramic Fiber (RCF) grades and the famous ‘ULS’ Low Bio Persistence Fiber grade we are offering one of the most extensive ranges of high temperature fiber blankets in the market today. With our  different chemical compositions we are able to provide a solution to nearly every atmosphere or temperature.


  • Proven technical solution
  • Low shot technology
  • Excellent insulation performance
  • High handling strength
  • Unaffected by most chemicals
  • Excellent thermal stability
  • Resistant to thermal shock

Typical applications

  • Thermal insulation for furnace lining
  • Thermal insulation for lining stacks and chimneys
  • Blanket for module making
  • Furnace lining in Ceramics and Glass
  • Thermal insulation for the Petrochemical Industry
  • Chemically stable insulation for Steel Treatment
  • General technical insulation of furnaces and
    technical installations.

More information including Data sheets can be found here

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