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Thermobreak® LS is the leading and most innovative flexible thermal insulation available to the HVAC & Building industry worldwide, with the added benefit of third-party certifications including UL and TUV PSB thus meeting the highest fire ratings available today for duct and pipe insulation.


Compliance to International Fire & Smoke Standards

Thermobreak® LS meets and complies with major international fire and smoke standards for duct and pipe insulation.

  • BRITISH (BS 476 Class 0)
  • ASTM E 84, UL 723 (25/50)
  • AUSTRALIAN (AS/NZS 1530.3)
  • ISO STANDARD (ISO 5659-2)

Independently Tested and Certified

  • Critical insulation performance factors such as thermal conductivity, vapour permeability, as well as fire performance, smoke density and toxicity are tested and certified by independent laboratories. Copies of all the certificates are included in our Technical Information Kit.

Optimum Technical Performance

  • Lowest thermal conductivity of any flexible foam insulation; k = 0.032 W/mK @ 23oC (0.22 @ 73oF).
  • Negligible water vapour permeance of 2.3 x 10-15 Kg/Pa.s.m (0.002 perm-inch) means no additional vapour barriers or coatings are required.

Easy to Use

  • Thermobreak® LS is easy to drill and cut and contributes to reducing installation time of mechanical services that may be installed afterwards.
  • Available with repositionable adhesive backing.

Health, Safety and the Environment

  • Completely user friendly and does not emit fibres or dust during installation or in service.
  • Non-irritant, odourless, and will not support bacterial growth.
  • Green Star compliant (VOC), Zero Global Warming Potential (GWP), Made without Ozone destroying agents such as CFCs or HCFCs.
  • Manufactured under a certified ISO 14001 Environmental Management system

Duct Insulation

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Building Insulation

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OEM Insulation

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Vessel Insulation

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