High Temperature Insulation Textiles

We offer a range of woven textile products including yarn, cloth, and ropes made from our high temperature insulating fibre materials.

High Temperature Insulation Fibre Textiles

Our textile products are made using refractory insulating fibres and organic or non-organic binders to create a yarn. This yarn can then be woven into products such as cloth, cable rope, rope lagging, twisted rope, webbing and ladder tape. 

The range comprises two fibre grades:

  • Alkaline Earth Silicate Fibre (AES) bulk made from our unique low bio-persistence fibre Superwool®
  • Refractory Ceramic Fibre (RCF) also known as Alumino Silicate Wool (ASW) bulk fibre made from Kaowool® fibres  

AES (Superwool®)

Our Superwool® textiles are particularly resistant to chemical attack and can be used with molten aluminium. Superwool® is the only low bio-persistence fibre available with a classification temperature of 1300°C (2372°F). 

Superwool® fibres are exonerated and are not classified as carcinogenic by IARC or under any national regulations on a global basis. They have no requirements for warning labels under GHS (Globally Harmonised System for the classification and labelling of chemicals). In Europe, Superwool® fibres meet the requirements specified under NOTA Q of European Directive 67/548. All Superwool® fibre products are therefore exempt from the classification and labelling regulation in Europe. 


The Kao-Tex™ and Kaowool® family of products features excellent tensile strength with maximum temperature ratings from 538°C (1000°F) to 1371°C (2500°F) dependent on additional materials used in the manufacturing and finished product form. 

All our textile products offer excellent resistance to thermal shock and abrasion and are asbestos free. They are used in manufacturing, chemical processing, power generation and construction, in applications such as:

  • Welding curtains in steel fabrication
  • Fire blankets for commercial and domestic kitchens
  • Smoke and fire curtains in buildings
  • Kiln car, expansion joint and door seals in furnaces
  • Gaskets in furnaces and domestic appliances
  • Flexible expansion compensators in power generation equipment
  • Removable, flexible thermal insulation quilts for pipe work and valves in the petrochemical industry. 

We work with our customers to engineer thermal systems to individual specifications. We design thermal systems for folding, wrapping, and conforming to a limitless variety of shapes and sizes. For more information or to discuss your application, contact us today.

See our full trademarks list and contact details for our Intellectual Property team here.