Firesealâ„¢ Class O Foam

Class O foam
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Fireseal™ Class O Foam

We manufacture a comprehensive selection of Fireseal™ fire retardant, non-burning polyurethane and melamine foams and products, which meet FMVSS302, UL94 HF1, Class O and FO 36 (Black Pyrosorb, Fireseal™ and Basotect PVC Nitrile) standards. Our class O foam can be manufactured with a variety of self-adhesive backings, sizes and densities.

While the building and automotive sectors form our largest customer base for fire retardant foams, we also supply a wide range of other sectors, from bedding to industrial machinery and recording studios. But, the potential applications for fire retardant foams are vast and there are many products, which benefit from being produced with fire retardant foams.

Please contact our Conversion technical team.The material is normally adhered to the background surface using a separate adhesive or by means of the optional self adhesive backing (contact our technical team for a specification sheet on self-adhesive films for properties and limitations). Additionally the product can be mechanically fixed (using large headed fixings or spreader washers). Our insulation support pins and non-return washers represent a suitable fixing.

The foam is available with a self-adhesive backing fi lm to simplify installation. Optionally, the product can be supplied with an extensive range of facing materials.

An in-house cutting service is available for supply to final sizes / shapes using a variety of processing techniques including die-cutting and CNC cutting. A full ‘kitting’ and packing service is available for OEM supply.

Fireseal Class O Foam
Fireseal Class O Foam

Technical Specification

  • Colour: Dark Grey
  • Density (Specific gravity) : >90kg/M3
  • Fire Propagation Index: <12 (BS476 pt 6)
  • Surface Spread of Flame: Class “1” ( BS476 pt 7)
  • Building Regs. 1991 (Fire Safety): Class “0”
  • Operating Temperature: -30 to 100 C
  • UL 94 Classification: 94V-0 (UL 94)
  • Surface Burning Behaviour: Class A (ASTM E84-95)
  • Air Erosion Resistance (4001 – 60fpm) – Pass (ASTM C1071-91 12.7)
  • Fungus Resistance Test: Does not support growth (ASTM G 21)
  • Mildew (Fungus ) Resistance Does not support growth (ASTM D-2020)
  • Water Vapour Sorption: <9% (ASTM C553-92)
  • Thermal Conductivity: 0.364 Btu-in./hr-ft2-degree F (ASTM C518-91)
  • Corrosiveness (galvanised steel): Pass (ASTM C665-95)
  • Hot Surface Peformance @ 100c 96hr: Pass (ASTM C411-97

Accoustic Performance

  • Sound Absorption @ 25mm (Normal Incidence): NRC > 0.40
  • Sound Absorption @ 25mm (Random Incidence): NRC > 0.50
  • Sound Absorption @ 50mm (Random Incidence): NRC > 0.78

Sizes
Thicknesses available are: 25mm, 50mm (special order alternative thickness and cut to drawing available, please call)

Class O foams have been widely adopted in the building industry where high performance acoustic foams are required with superior sound absorbing and non-flammable properties. The exceptional soundproofing properties make it a first choice for reducing noise in any application.

  • Building and construction
  • Automotive and transportation
  • Machinery such as compressors and generators
  • Recording studios
  • Furniture
  • Bedding
  • Ducting
  • HVAC linings
  • Ceiling tiles
  • Wall panels
  • Suspended sound absorbers