HT/ArmaFlex is a flexible closed-cell elastomeric foam insulation for use in high-temperature applications of up to 150°C. It reduces the risk of corrosion under insulation (CUI)  and has a built-in UV-resistance for long service life. Applications include thermal insulation of pipes, vessels and ducts in solar collectors (including outdoors), motor vehicles, hot gas lines as well as steam lines and dual temperature lines.

Key features

  • Temperature resistant up to 150°C
  • Built-in water vapour barrier reduces risk of corrosion under insulation (CUI)
  • Minimum energy loss through low thermal conductivity
  • High durability, including UV-resistance
  • Manufactured in Germany
HT/ArmaFlex® - Flexibility at high temperatures
HT/ArmaFlex - Flexibility at high temperatures

Explore our solutions

ArmaFlex Class 0

ArmaFlex Class 0 is the trusted insulation system for HVAC applications. Class 0 fire classification according to BS476 Parts 6 and 7. Reduces mould and bacteria growth with Microban® anti-microbial product protection, unique to Armacell.


NH/ArmaFlex is a halogen-free flexible elastomeric foam insulation. A reliable solution for shipyards. The professional insulation solution for clean rooms. Prevents stress corrosion cracking when installed on stainless steel. 

ArmaGel HT - next generation aerogel blanket technology

Welcome to the next generation of aerogel blanket technology. Flexible and bendable. Environmentally safe. Superior thermal performance. Designed for safety. C1728 compliant. ArmaGel HT is the reliable solution for high-temperature applications.