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Dobson Gaskets is a leading UK manufacturer of gaskets and sealing products

Call Us Now

+44 (0) 1535 607257


E Dobson and Co [Gaskets] Ltd
Unit 1
Holme Mill Ind Estate
Fell Lane
West Yorkshire
BD22 6BN

Call Us Now

+44 (0) 1535 607257

Call Us Now

+44 (0) 1535 607257

Opening times

Mon - Thur 8.00 - 17.00
Fri 8.00 - 16.00

A Sponge Gasket

Sponge Gaskets

Sponge sheet material is also called foam sheet or expanded and sponge rubbers. The polymer material offers improved compressibility over many other rubber composites used in gasket applications. Dobson Gaskets maintain a comprehensive stock of closed or open cell sheet materials or can supply other sponge or foam gasket materials at highly competitive prices.

Open Cell Sponge

Open Cell Sponge

Open cell sponge gasket materials are composed of connected cells that allow the passage of air or gas to pass through under compression. Materials include reticulated foams, plasterzotes, PVC foam, Polyurethane, Polyethalene

Closed Cell Sponge

Closed Cell Sponge

Closed cell sponge and foam materials are composed of unconnected cells that resist contamination from moisture, dust, air or grit. Materials include EPDM, neoprene, silicon, Polyurethane, Polyethalene

The Manufacture of Sponge Gaskets and Foam Gaskets

Sponge gaskets are manufactured in-house from grades of sponge and foam materials, which is precision cut in-house using CNC, waterjet and punch press machinery. Our state-of-the-art production processes guarantee the accuracy and consistency of all the sponge and foam gaskets we produce.

Our full turnkey service includes help with materials specification, CAD design, manufacture and worldwide distribution. Equally, we can produce single or multiple gaskets from designs and templates. All gaskets are supplied to recognised national and international standards.

Key Properties

  • Closed-cell sponges are most often used in applications where water, gas and sound retention or exclusion are important.
  • Open-cell sponge allows the ingress of air has connecting cavities which make the sponge more compressible.
  • Available in Soft, Medium, Medium-firm, Firm and extra-firm densities.

The Manufacturing Proccess Of A Sponge And Foam Gasket

Sponge Gasket Materials

Sponge and foam materials are available in a wide variety of sheet sizes and thicknesses.  Bespoke materials can also be manufactured and converted in-house to suit individual requirements. For more information about specific materials and conversions, please get in touch with our technical team.

Materials Temperature Range Max PSI/BAR PN Range
Neoprene Sponge Gaskets min -20 max 90 °C  10 bar  2.5/320
EPDM Sponge Gaskets min -20 max 100 °C  10 bar  2.5/320
Nitrile PVC Sponge Gaskets min -50 max 100 °C  10 bar  2.5/320
Silicon Sponge Gaskets min -40 max 200 °C  10 bar  2.5/320
Polyurethane Sponge Gaskets min -30 max 90 °C 10 bar 2.5/320

download datasheet

Talk to a Technician

Our highly experienced technicians can advise you on the best sheet materials and manufacturing processes for a wide range of gasket applications.

CALL: +44 (0) 1535 607257

Industrial Uses of Open and Closed Cell Sponge and Foam Gaskets

Widely used in sealing and insulating applications across a range of industries, foam and sponge gaskets are manufactured from open and closed cell materials. Open cell foam gaskets offer excellent shock or vibration resistance, while closed cell gaskets have good environmental properties for external use.

Typical sponge gasket applications include:

  • Weather resistance>
  • Noise reduction
  • Insulation
  • Absorption
  • Cushioning
  • Appliance manufacture
  • Automotive
  • HVAC
  • Medical Sector
  • Electronics
  • Lighting
  • Packaging

Gasket Sheet Materials

We supply a vast range of gasket materials, available to buy directly or order from us. For more information visit the Gasket Sheet Materials page

  • PTFE Gasket Sheet
  • Rubber Gasket Sheet
  • Spiral Wound Gasket Sheet
  • Teflon Gasket Sheet
  • Viton Gasket Sheet
  • Graphite Gasket Sheet
  • Novus Gasket Sheet
  • Flexitallic Gasket Sheet
  • Closed Cell Foam Gasket Sheet
  • Neoprene Foam Gasket Sheet
  • Sponge Gasket Sheet
  • Durlon Gasket Sheet
  • Grafoil Gasket Sheet
  • Paper Gasket Sheet
  • High Temperature Gasket Sheet
  • Head Gasket Material Sheet
  • Exhaust Gasket Sheet
  • Fibre Gasket Sheet