High Temperature EPDM Sponge Seals

Here at Advanced Seals & Gaskets Ltd, we have the expertise and facilities to produce and supply many seals in the form of washers, gaskets, strips, O-rings and extrusions made into bespoke profiles, designed to prevent the leakage or ingress of air, fluid or gas, and to provide protection. 

One of the materials we can manufacture seals from is a High-Temperature EPDM sponge.   All our High-Temperature EPDM sponge seals are made to order and are produced using dimensions, samples or drawings provided by customers to ensure the final product perfectly fits their application. 

As each form of seal needs to be manufactured using a different process, ASG has invested heavily in various machinery meaning we can produce excellent quality High-Temperature EPDM sponge seals in both high and low volumes.  

What are High Temperature EPDM sponge rubber Seals?

EPDM is an abbreviation of Ethylene Propylene Diene Monomer which are the chemical components used to manufacture this sponge, this HIgh-Temperature variant is a very flexible, closed-cell elastomeric (rubber-like properties of a polymer) insulation material, which has many of the properties of a standard EPDM sponge, but formulated to withstand higher temperature applications.   

High-Temperature EPDM sponge seals are a device or substrate that are used to securely join surfaces together,  to either act as a separator or a body to prevent liquids, solids or gases from escaping or penetrating the application, they can take the form of cut gaskets, strips, washers, extruded profiles and cord, all manufactured using the same material which can be compressed, which in turn further ‘hardens’ the material to create a secure seal. 

Many of our High-Temperature EPDM  sponge seals can be supplied with a choice of self-adhesives which assists with placement of the seal and holding it in position

High Temperature Epdm Sponge Seals

Product Enquiry

For information on High Temperature EPDM Sponge Seals please complete the following quick enquiry or call us on +44(0)1384 252555.






    Product Specification & Key Characteristics

    • Colour: Black
    • Temperature Range: -50°c to +150°c
    • Density: 55kg - 70 kg/m3
    • Resistances: UV, ozone, weathering, saltwater, grease, many chemicals, mould, fungus, rot
    • Flammability Tests: Class 1 resistance to flame spread in accordance with BS 476 Part 7 test procedure - Self-extinguishing, does not drip or spread flames

    Full technical data can be supplied upon request,
    or downloaded from our online portal.

    Help and guidance

    If you would like to speak to a representative to discuss your specific application or requirements please call our sales office direct on 01384 469100, alternatively you can send an E-mail. Simply click on the link and forward us your details along with your question and we will contact you immediately.

    Samples - Technical High Temperature EPDM Sponge Seals

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    Why use High Temperature EPDM Sponge Rubber Seals?

    High-Temperature EPDM sponge seals are ideal for customers who are looking for both standard and non-standard profiles to fit specific applications, the process of producing an extruded seal means the customer is guaranteed to have an identical product each time, which is essential for high volume production and assembly.   

    By using a High-Temperature EPDM Sponge seal, end users have the benefit of a perfectly fitting rubber profile which is suitable for applications that require ozone, UV and weathering resistance, combined with the ability to withstand high temperatures. 

    High-Temperature EPDM sponge seals can operate between a temperature range of -50°c to +150°c, remaining flexible and still providing an adequate seal at very high or low temperatures.  

    High-Temperature EPDM sponge seals are non-porous, non-fibrous, resists mould and fungus growth and is highly moisture resistant, preventing condensation and corrosion.

    The Benefits of using High Temperature EPDM sponge rubber

    • Temperature range of -50°c to +150°c
    • Excellent ozone, weathering and UV light resistance
    • Excellent thermal conductivity
    • Excellent insulation properties
    • Can be manufactured in either plain or self-adhesive backed
    • Preventing condensation and corrosion
    • Closed-cell structure  prevents bacteria and moulds build-up

    The Advantages of using High Temperature EPDM sponge rubber Seals

    High-Temperature EPDM material can be supplied in thicknesses between 6mm and 32mm and manufactured in roll format 1 metre wide a skin finish on one or both sides dependent upon thickness required from which seals can be cut. High-Temperature EPDM Sponge can also be supplied in some extruded sealing and insulation profiles upon request.  As we carry out our conversion onsite, we can split or laminate these materials to create thinner or greater non-standard thicknesses to order. 

    As well as the temperature range, the High-Temperature EPDM sponge has many excellent mechanical characteristics including thermal and insulation properties. High-Temperature EPDM sponge seals offer moisture-resistant properties which prevent condensation, corrosion and the growth of bacteria, rot and fungus. 

    This material has some resistance to many chemicals, solvents, grease and saltwater, combined with a temperature resistance of 150°C makes it ideal for many demanding applications and industries including HVAC, Refrigeration, Pipeline, Automotive, Solar panels, Steam, White goods and Building & construction, etc.

    Grades of EPDM Sponge Available

    ASG stock a variety of other grades and densities of EPDM sponge which can call be used to manufacture seals each suited to individual applications. These include firm grade, high temperature and semi-open cell varieties:

    Medium Density EPDM is available in black or white colour options.  EPDM sponge is a strong, synthetic material that has a closed-cell structure making it an ideal material for internal and external sealing applications where minimal compression is required for the material to work as an effective seal.  Medium-density EPDM sponge has a density of 90 – 140kg/m3, an operating temperature range of -20°c to +85°c and is flammability tested to FMVSS 302.

    Semi-Open cell EPDM combines the flexibility of an open cell material with the excellent sealing capabilities of closed-cell types once compressed. Semi-open cell EPDM pads will allow for the ingress of air, dust, moisture until compressed by 80% of their thickness, following this the product becomes water and airtight and behaves as a closed-cell product.

    Firm Grade EPDM Foam is a more resilient material that will not compress as much as the standard grades under load, also this material benefits from increased tear strength and suits some of the more demanding applications such as Automotive, White Goods, Marine, Defence, Building and Construction, etc

    For further information, you can view our online specification sheets or speak to a member of our sales team.

    Have a Question about High Temperature EPDM Sponge Seals?

    Please contact us using the form below or by calling us on +44(0)1384 252555.