A-flex is a flexible thermal insulation material made from closed-cell, elastomeric nitrile rubber foam.

A-flex is produced in pre- formed sheets and pipe sections. These products meet insulation requirements in diverse fields such as the Automobile, Air Conditioning & Refrigeration industry, Construction industry, Hospital industry, Pharma industry, Hotels and Cold storage industries.

  • Duct Insulation.
  • Raised Floor Insulation.
  • General Thermal Insulation
    (large diameter pipes, tanks, vessels, etc)
  • AC Unit Insulation
    (internal insulation of units, evaporators, etc)
  • General Thermal Insulation
  • Clean Room Applications.
  • Cold Storage Applications.
  • Underslab Insulation. Transport segment AC Units
  • Chilled Water
  • Completely closed cell elastomeric nitrile insulation.
  • Quick and easy to install with no special tools.
  • Flexible, durable and easy to handle.
  • Excellent compression strength due to closed cell structure.
  • Contains no chlorinated or dangerous substance.
  • Superior thermal insulation properties over other open or closed cell insulation material due to high water vapour resistance property of nitrile rubber
  • Very high diffusion resistance and no cladding required if installed inside
  • Class 1 fire safety as per BS 476 part 7.

Technical Data

1.0 Thermal Insulation Material Closed Cell Elastomeric Nitrile
Rubber foam
2.0 Density (Kg/M3) 50 ± 20% (Sheet),
60 ± 20% (Tube)
ASTM D1056
3.0 Thermal Conductivity (K Value) 0.035 W/m°K at 10°C
0.036 W/m°K at 20°C
0.037 W/m°K at 30°C
0.038 W/m°K at 40°C
ASTM C 518
4.0 Service Temperature -40 to 105 ◦C
a) Surface flame spread
b) Rate of Burning (Vertical position)
c) Practical fire Behaviour
Class 1
Class V-0
Self-Extinguishing , does not
drip ,does not spread flames
BS 476 Part
UL 94-1997
ASTM D 635 -06
6.0 Water Vapour diffusion resistance Index ≥7000 (For Plain) ASTM E-96
7.0 Ozone Depleting substances (CFC/HCFC) Not Detected No Asbestos GC-MS
8.0 Resistance to oil & grease Very Good
9.0 Odour Negligible