ArmaFlex Ultima®

Low flammability. Low smoke development. First technical insulation material to achieve BL-s1, d0 classification. 


New safety standard in technical insulation

During a fire, people have just a few minutes to escape because just three breaths of highly toxic fire smoke can be lethal. The European fire classification takes into consideration when assessing the fire behaviour of building materials, testing not just flammability, but also smoke density and the production of burning droplets.

Based on Armacell‘s patented ArmaPrene® technology, ArmaFlex Ultima is the first flexible technical insulation material to achieve the fire class BL-s1, d0. It exhibits 10 times less smoke development as compared to standard flexible elastomeric foam insulation.


Key features

  • Low smoke emission during a fire
  • Meets the requirements for sustainable construction such as LEED
  • Type III Environmental Product Declaration (EPD): Declaration number EPD-ARM-20150109-IBB1-DE
  • Complete system integration with adhesives and pipe support
ArmaFlex Ultima® - Install safety
ArmaFlex Ultima range

Other Armacell 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.


HT/ArmaFlex is a flexible elastomeric foam insulation for use in high temperature applications. Advanced insulation for industrial applications. Reduces risk of corrosion under insulation (CUI). Built-in UV-resistance for long service life. 


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 - Insulation just got better

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.