Many materials are characterised as open-cell and all exhibit a variety of properties that differentiate them from their counterpart, closed-cell materials.

What does open-cell mean?

Open-cell sponge rubber and foams contain open, interconnected pockets that permit the passage of air, water and other chemicals when the material is not compressed.

Examples of open-cell sponge rubbers and foams

EPDM open cell foam
This open-cell material is particularly suitable for cushioning or seals. This is because when the material is compressed, it is able to easily recover. In addition, it is a soft, porous and flexible foam rubber.

Open-cell polyurethane
Similarly, open-cell polyurethane is a soft material that is utilised primarily in the furniture industry. Applications involve cushioning, protective surfaces and gap filling in furniture such as sofas, chairs and desk chairs. In addition, this open-cell material is also used in air conditioning systems due to its ability to resist catching fire.

PVC open cell foam
Although PVC open cell foam has a variety of applications, it is commonly used in applications such as window and glazing systems for protection purposes.