Polyurethane Foam

Polyurethane Foam Washers

ASG offers a wide range of polyurethane products in solid and foam material types, in various densities all of which can be used for washer production.  Advanced Seals & Gaskets Ltd are proud to offer an excellent in-house cutting and conversion service so all our polyurethane foam washers are made to order and are produced using dimensions, samples or drawings provided by our customer to ensure the final product perfectly fits the application – even offering a small sample run if required. Depending on the size and quantity of the washers required, our production team will select from our range of atoms, autos, travelling head, kiss cut pressing machines or for very large or thick washers, we can programme our CNC (oscillating knife) to produce the washers in the most efficient way to keep lead times down. Polyurethane foam is stocked in a range of grades and densities, which can be laminated to other materials or coated with a sale-adhesive backing prior to the washers being cut.


What are Polyurethane Foam Washers?

Polyurethane foam is one of the members of the polymer family, it is a low-density foam from which washers can be cut. Washers are a flat ring (comprising of an Outer Diameter (OD), Internal Diameter (ID) and the thickness) cut from a sheet or roll of material, which is placed between two surfaces creating a level surface, acting as a spacer or between a nut/bolt to spread the pressure when tightened. They are also used in a number of vibration dampening, sealing and insulating applications.


Why use Polyurethane Foam Washers?

Polyurethane foam washers are available in a range of colours, thicknesses and densities, all of which suitable for acoustic and thermal conductive applications. Polyurethane foam washers offer good sealing properties against water, air and dust, and are resistant to UV and ozone. Polyurethane washers can also be produced using specialist grades which include conductive, static dissipative and flame-retardant.


Available grades

Advanced Seals & Gaskets work with a number of material manufacturers, giving our customers more choice when looking for washers, ensuring we can offer a solution to just about any application. Each type of material has its own range of properties, colours, thicknesses, etc – our most popular include:

  • Acoustic
  • egg box
  • HLB 
  • Basotech
  • Polyester
  • Recon
  • Retic
  • Polyether


Benefits of Using Polyurethane Foam Washers

Polyurethane foams are available in a wide variety, allowing us to manufacture washers for use within various applications and industries.  Polyurethane foam washers perform well across a wide temperature range, have resistance to compression and chemicals, offer good vibration and impact absorption and can be manufactured with extra additives to create specialist grades which include conductive, static dissipative and flame-retardant. Some of the popular uses for polyurethane washers include heating & ventilation, automotive, dust sealing and building & construction applications.