Applications
Duct insulation
- OEM insulation
- Rail and coach (Thermobreak RT)
- HVAC installation and manufacture
- Custom fabricated kits available
Thermobreak® is a leading flexible thermal insulation material made from physically (irradiation) cross-linked closed-cell, polyolefin foam, factory bonded to reinforced pure aluminium foil and available with a pressure sensitive adhesive backing. With a lower thermal conductivity than any other flexible foam insulation material, almost zero vapour permeability, and its all-in-one concept, Thermobreak® provides superior energy saving performance, fast and simple installation, and trouble -free operation in a variety of environments.
Duct insulation
Available in thicknesses of 5mm, 10mm, 15mm, 20mm, 25mm and 50mm in sheets/rolls.
Material | Physically (irradiation) crosslinked closed cell polyolefin foam with factory applied reinforced aluminium foil |
Density | 25kg/m3 (foam core only) |
Thermal Conductivity
(ASTM C518) |
0.032 W/m.°K (@ 23 °C mean temperature) |
Water Vapour Permeability
(ASTM E96) |
2.3 x 10-15 kg/Pa.s.m (0.0084 mg.m/N.h) |
Water VapourPermeance | 1.95 x 10-4 g/MN.s |
Permeability Resistance factor | µ > 80,000 |
Water Absorption by volume
(ASTM C1763, Procedure B, 24h) |
< 0.2% v/v |
Resistance to Fungi
(ASTM G21) |
Zero Growth |
Leachable Chlorides
(ASTM C871) |
< 12 ppm (<0.0012% w/w) |
Ozone Resistance | Excellent |
UV Resistance | Excellent |
VOC Emission Rate
(ASTM D5116) |
Low VOC emitting (“Green Star”) |
Noise Reduction Coefficient
(ISO 354) |
0.20 (12mm foam thickness)
0.30 (25mm foam thickness) |
Operating Temperature Range | -80°C ~ +100 °C (no adhesive) |