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Polyurethane Class O Acoustic Foam

Polyurethane Class O Acoustic Foam

A general-purpose substance that has been treated with inorganic fire-retardant additives is polyurethane Class O Acoustic Foam. It is appropriate for use in buildings as a sound-absorbing panel or as acoustic flooring since it has high thermal insulation qualities and is flame retardant in line with BS 476 Parts 6 and 7. When installed, PU foam provides good longevity and is simple to cut and handle. It also does not foster the growth of fungi. The foam is non-toxic, devoid of CFCs and HCFCs, and used in a variety of sectors including manufacturing, HVAC, automotive, and building and construction.

The class O acoustic foams that we provide at PAR Group are polyurethane and are utilized in a variety of applications.


Commonly used for internal and external duct linings, thermal and acoustic machine coverings, suspended ceiling absorptive panels, acoustic flooring and external lagging.

Key Features

  • Temperature: -30°C up to +100°C.
  • Chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) free.
  • Provides excellent flame retardant properties.
  • Provides an effective barrier to sound.
  • Flexible, easily cut and lightweight.
  • Does not support fungal growth.
  • Easy to handle and install.
  • Non-toxic.


  • Offers a Class O fire testing rating in accordance with BS 476 Part 6 and 7 for ‘fire tests on building materials and structures’.
  • Provides a class UL94 V-0 flammability rating; meaning the polymer will self-extinguish after removal of flame.

Technical Specification:

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