Class ‘O’ Acoustic Polyurethane Foam

Class 'O' Acoustic Polyurethane Foam may also be referred to as Acoustic Foam, Impregnated Polyurethane or Pyrosorb.

Advanced Seals & Gaskets Ltd Manufacture a diverse range of Class 'O' Acoustic Polyurethane Foam products. Class O Foam is often referred to as Acoustic Foam, Fireseal, Impregnated Polyurethane, Non-Flammable Acoustic Foam or pyrosorb.

"Class O" is the best building regulations designation for materials that protect from the spread of flames and limits the amount of heat released from the surface during a fire. Class 'O' Acoustic Polyurethane Foam is manufactured from a fire retardant modified foam which is designed to meet the requirements of the British Building Regulation.

Advanced Seals & Gaskets Ltd are able to manufacture a wide variety of products from Class O Acoustic Polyurethane Foam including:

All of the above can be manufactured in either plain or self-adhesive backed, peel-able liner on one or both sides and will also readily accept facings and acoustic barrier layers. Class O Acoustic Polyurethane Foam is a flexible, durable, non-irritant material that is safe and easy to install product that has a magnitude of uses including acoustic enclosures, air conditioning systems, acoustic wall panelling, engine bay compartments and generator rooms.

Key Characteristics of Class ‘O’ Acoustic Polyurethane Foam:

  • High resistance to fire
  • Low smoke emission
  • High resistance to air erosion
  • Reduces vibrations
  • Excellent acoustic properties
  • Is non-fibrous eliminating the potential health hazards associated with fibrous products
  • Non-toxic
  • CFC and HCFC free
Class 'O' Acoustic Polyurethane Foam

Help and guidance

If you would like to speak to a representative to discuss your specific application or requirements please call our sales office direct on 01384 469100, alternatively you can send an E-mail. Simply click on the link and forward us your details along with your question and we will contact you immediately.

Quality of our Class ‘O’ Acoustic Polyurethane Foam

The quality of service and the products manufactured from Class ‘O’ Acoustic Polyurethane Foam is controlled by our Quality Management Systems which is certified to ISO 9001.

Call now for sample requests or further help.

Material Enquiry

For information on Class ‘O’ Acoustic Polyurethane Foam please complete the following quick enquiry or call us on +44(0)1384 252555.






    Material Specification

    Full technical data can be supplied upon request,
    or downloaded from our online portal.