Polyether

Flexible and resilient foam rubber

Polyether is a flexible and resilient type of foam rubber. When compressed, the material naturally returns to its original shape. Depending on its composition, polyether can feel soft or firm. It is one of the most well-known foam types and is widely used in various applications such as cushions and mattresses.

Density rating (SG-value) and lifespan per variant

The quality of polyether foam is determined by its SG-value (density). Polyether is available in three main variants:

  • The most affordable option. Firm, with a lifespan of 1–3 years. Less suitable for intensive use.
  • Softer than SG25, with a longer lifespan of 5–8 years.
  • Ideal for cushions and applications with heavy or daily use. Lifespan: 8–12 years.

All types of polyether offer good insulation and are suitable for people with dust mite allergies.

Not sure which one to choose? Check our overview of the most common foam rubber applications.

Choose from standard sizes or custom dimensions

At Exact Foam, you can order polyether foam in pre-cut sheets or have it custom-cut to your needs. Sheets can easily be trimmed at home with a sharp kitchen knife. Prefer custom sizing? Then order polyether cut to size — so you only pay for what you need.

We cut the foam precisely using professional cutting machines.

Need sizes larger than 300 cm x 180 cm? Contact us for a custom quote.

Collections

View more

Foam rubber for a wide range of applications

Foam rubber comes in many types and sizes.

Don’t have the time or interest to read more about foam? Head straight to our foam applications page. There, you’ll find an overview of the most common uses such as seat cushions, caravan cushions, and mattresses. Our Foam Advice Tool will guide you in choosing the right type of foam for your specific needs.

  • Didn't see anything you like?

    Try this collection.

  • Did you know?

    Foam rubber isn’t just soft and flexible it’s also incredibly durable and often recyclable. It’s used in everything from furniture and packaging to sound insulation and medical support. A smart choice for comfort and sustainability!