Other Sponge Gaskets


Commonly called expanded silicone in the cellular rubber products industry, silicone sponge is a type of closed cell material that is usually available in thicknesses between 1/16" to 2". A.J. Rubber & Sponge Ltd.'s silicone sponge gaskets and seals possess many unique properties:

  • Very soft compared to solid silicone gaskets
  • Comprised of a closed cell structure, making silicone sponge the preferred choice for custom gaskets and seals manufacturing
  • Densities are typically defined by the compression force of deflection in a PSI range compressed by 25% (a range of 2 to 5 PSI compression force of deflection is rated as soft, whereas a range of 14 to 20 PSI is rated as hard)
  • They derive from an uncured silicone gum source, which then expands to the desired size through a specialized manufacturing process
  • They provide superior water sealing under numerous applications

To further explore A.J. Rubber & Sponge Ltd.'s silicone sponge gaskets and seals, or any of our other sponge gaskets and seals or, please browse our website, or get in touch with our friendly team should you have any questions, or require a free quote.