Closed-Cell Sponges [What They Are & When to Use Them]


We work with many different types of substances in our manufacturing. One of the most popular is closed-cell sponge material. Closed-cell sponges are fabricated with air bubbles confined within the material. These air bubbles result in a strong, dense material that increases the insulation capacity and resists water.

Since this kind of material is so good at reducing the flow the liquid and gas, it’s perfect to use for sealing. Industries that could benefit from using it including HVAC, automotive, and marine. 

Types of Closed-Cell Sponge Materials

We used a variety of closed-cell materials, including:

  • Neoprene
  • EPDM
  • Nitrile
  • PVC foam
  • Silicone
  • Polyethylene
  • And more

When to Use Closed-Cell Sponges

Closed-cell sponges are a great option when used in the following applications:

  • Gaskets
  • Vibration dampeners
  • Isolators
  • Mounting pads
  • Bumpers and spacers
  • Seals and weather stripping
  • And more

Get a Quote On Custom-Fabricated Closed-Cell Sponge Material

American Flexible Products is a nation-wide converter of flexible materials—from foam to rubber to silicone and more. Every product is custom-cut and shaped to your design specs by our materials engineers.

Call (952) 368-4225 or out the form below and our material experts will help you choose the right grade, size, and shape for your prototype.