Armaflex Class O 

Product Brand

Product Details

ArmaFlex Class ‘O’ is a highly flexible, closed-cell Nitrile rubber Insulation material with high water vapor diffusion resistance and low thermal conductivity. It prevents condensation, reduces energy losses and protects against condensation on pipes, air ducts, and vessels. ArmaFlex Class ‘0’ tested as per BS 476 Part 6 & 7 and suitable for hot water services, chilled water lines, heating systems, air conditioning ductwork, refrigerated pipework, process, and industrial pipework and equipment. ArmaFlex Class ‘O’ is FM Approved product offering from Armacell India Pvt. Ltd. ArmaFlex Class O has excellent technical parameters like low thermal conductivity [λ0°C ≤ 0.035 W/(m∙K)] and high water vapor diffusion resistance (µ ≥ 7,000). ArmaFlex Class O gives increased long-term thermal efficiency due to its closed cell structure which has long-term protection against condensation. ArmaFlex Class O is available in sheets and tubes.


  • Excellent fire performance – Class ‘O’ fire classification according to BS 476 part 6 & 7 with FM approval.
  • Closed-cell structure – Minimises moisture permeation to ensure long-term protection against corrosion under insulation (CUI) and gives better water vapour diffusion resistance.
  • Energy efficient – Low thermal conductivity minimises energy losses to give long term energy savings.
  • No additional materials required – No Vapour Barrier is required at the time of installation of ArmaFlex Class 0.
  • Best-in-class insualtion – ArmaFlex Class 0 has Low Thermal Conductivity, λ0°C ≤ 0.035 W/(m·K) with High Water Vapour Diffusion Resistance, µ ≥ 7,000.
  • Easy-to-install – Highly flexible elastomeric foam that can be installed quickly on irregular shapes and installations in tight spaces.


    Send Us a Message