Closed-cell and open-cell rubber

Closed-cell rubber is soft and has a sponge-like feel; it is a foamed material with closed cells, which means that the cells are not interconnected. Thanks to the closed cells, this type of rubber is totally impenetrable to fluids and gases. Closed-cell rubber can be used for multiple applications, for instance, as a protection from draught and wind, or as a material for noise dampening or packaging. It is also suitable for use as gaskets.

Closed-cell rubber features a number of physical properties; it requires low contact pressure and is:

• very light
• compressible
• dust-tight
• water-tight and gas-tight.

Hofland Rubber supplies closed-cell rubber products in various designs and qualities, both in the form of strips and sheets. If your project requires the easy application of closed-cell rubber, you can opt for a self-adhesive layer. We would be delighted to help you to make the right choice. Please contact us and together we can work out the optimal solution.

Open-cell rubber has an open cell structure covered with a ‘skin’ with a closed cell structure, which prevents water from accessing the open cell structure. Open-cell rubber also goes by the name of ‘sponge rubber’. It is most commonly used for gaskets and, in addition, it is also often used as a finishing profile or to protect corners. Commonly used qualities are CR, EPDM and silicone rubber.

Open-cell rubber is available in several designs in the form of sheets or strips, and can also be supplied with a self-adhesive layer.