Neoprene Sponge Gaskets

A.J. Rubber & Sponge Ltd.'s neoprene sponge gaskets and seals are comprised from a closed-cell material that falls within a family of synthetic rubbers. We die cut, kiss die cut and apply PSA (pressure sensitive adhesive) to our neoprene sponge gaskets and seals, which possess a variety of beneficial features, including:


  • Temperature operating ranges of -56.7°C to 93.3°C (-70° F to + 200° F)
  • Useful over a vast array of temperatures and suitable for use in conditions that are under enormous pressure
  • Superior heat resistance (ideal for applications with extremely high temperatures over long periods of time)
  • Suited for long term outdoor applications such as electrical enclosures or weather stripping
  • Ozone, ultraviolet light and sunlight resistant, as well as to many other weather elements
  • Resists the effects of both natural and synthetic oils and other volatile chemicals including but not limited to acid and gasoline
  • Resistant to tears or damage caused by flexing and/or twisting, and burning (much better than rubbers that are composed of exclusively hydrocarbon chains)

A.J. Rubber & Sponge Ltd. has provided a number of commercial and industrial businesses with our neoprene sponge gaskets and seals to help them complete production projects that require long-lasting, permanent sealing. Our neoprene sponge gaskets and seals are typically used in products that are exposed to harsh weather, chemicals or other damaging forces such as acid, rain, UV light, oil, direct sunlight, ozone, snow, hail, gasoline and sleet. Common industries who use our neoprene sponge gaskets and seals are:


  • Automotive manufacturing
  • Oil and gas
  • Medical equipment production
  • Aerospace and military
  • Clothing manufacturing
  • Electronics
  • Large engine assembly (ie. for airplanes, buses, trailers etc.)

To view technical data for A.J. Rubber & Sponge Ltd.'s neoprene sponge gaskets and seals, please visit:



AJ-42 spec sheet AJ-43 spec sheet AJ121 spec sheet



Please contact A.J. Rubber & Sponge Ltd. today, to learn just how our neoprene sponge gaskets and seals, or any of our other sponge gaskets and seals can benefit your company.