Sulphur Free EPDM Sponge

Sulphur Free EPDM Sponge

Sulphur Free EPDM Sponge

Rolls of Ethylene Propylene Diene Monomer or EPDM are one of Advanced Seals & Gaskets more popular materials, available in both solid and sponge variants in multiple grades, hardnesses and densities.

One such grade of EPDM we can offer is Sulphur Free EPDM Sponge or Peroxide Cured EPDM, which is manufactured and stocked in block form which can joined and converted into sheets using our state of the art splitting machines, enabling us to supply Sulphur Free EPDM sponge rolls starting from as little as just 1mm thick, in one meter wide by 10 meters long as standard, but these can made long or shorter to order.

Our on-site laminating service allows us to laminate layers of sponge together to create greater depths or fabrications, and also enables us to supply these rolls of sponge coated with a choice of self-adhesives, foils or even laminated to other materials.

Product Enquiry

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






    Key Characteristics of Sulphur Free EPDM Sponge Rubber

    • Colour: black
    • Density: 120+/- 15 kg/m3
    • Sulphur free
    • Better resistance to chemicals and oils
    • Temperature Range: -30 °C ± 90 °C
    • Flammability: FMVSS 302 PASS
    • Resistance: Ozone, UV resistance, chemicals
    • Impermeable to air and water

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

    What Are Sulphur Free EPDM Sponge Rubber Rolls?

    Most EPDM sponge is manufactured as blocks and involves a ‘curing’ process in the production, standard EPDM grades are manufactured using sulphur, however for some delicate applications, a sulphur free or peroxide cured material is required as sulphur-cured sponges can corrode materials, such as copper, silver, and other metal components therefore inevitably causing electrical devices to fail.

    Sulphur Free EPDM sponge rolls are continuous lengths of material, rolls are often taken as they gives the customers and end users the flexibility to be able to cut their own sheets, strips, gaskets, washers, etc out as and when they are required and achieve a better yield, rolls can also be used when larger pieces of materials are required to cover greater surface areas.

    Why Use Sulphur Free EPDM Sponge Rolls?

    Sulphur Free EPDM is a closed cell material, it offers thermal insulation, shock and vibration absorption. Sulphur Free EPDM Sponge sheets demonstrate good UV and Ozone resistance and excellent sealing properties against dust, air and moisture, they have a better chemical and temperature resistance compared to standard EPDM, therefore the components cut from these rolls are safe for use within lighting, electronics and automotive/transport applications.

    Sulphur Free EPDM sponge rolls can be used to convert into a range of finished components, but customers have these option of taking them in full rolls as they give the customer the flexibility to be able to cut their own parts such as strips, gaskets or pads out as and when required or to cover larger surfaces reducing the need for joins in the material.

    The Benefits of Using Sulphur Free EPDM Sponge

    • Noise, vibration, shock and reduction
    • Sulphur free EPDM sponge is naturally compressible to create the perfect air or moisture seal
    • Closed cell structure prevents bacteria and mould build up
    • Excellent properties making it popular for use in a range of industries and applications
    • Sulphur free EPDM sponge is easy to convert into a range of products including pads, strips and gaskets, and will hold most adhesives well
    • Cost savings on equipment and appliance failure

    Grades Of EPDM Sponge Available

    EPDM sponge Medium density is air and water tight, ages well without becoming brittle, offers good UV resistance and is able to withstand a wide scale of temperatures ranging from -20°C up to a high of 85°C.  It’s excellent electrical insulation material, as well as having good resistance to ketones, ordinary diluted acids and alkalis, Ozone, UV and weathering as well as its general resistance to abrasion. EPDM foam is also flammability tested to meet FMVSS302 and UL94 HBF standards

    High Temperature EPDM Foam is closed cell and highly flexible even at low temperatures, with an amazing temperature range of -50°c to +128°c.  High-Temperature EPDM foam has many excellent mechanical characteristics including thermal and insulation properties, making this material ideal for many industries and applications including HVAC, Refrigeration, Pipeline, Automotive, White goods and Building & construction, etc.

    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 ingress of air, dust, moisture until compressed by 80% of their thickness, following this the product becomes water and air tight 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 spec sheets or speak to a member of our sales team.

    Advantages Of Using Sulphur Free EPDM Rolls

    When looking for a durable material, customers often choose EPDM for many of their projects as the material offers endless advantages with certain grades adapted to meet particular applications.

    Sulphur Free EPDM sponge is a closed cell material, offering thermal insulation, shock and vibration absorption, good UV and Ozone resistance and excellent sealing properties against dust, air and moisture, but with an improved chemical and temperature resistance compared to standard EPDM.

    Materials cured or vulcanised using sulphur can react with metals such as copper or silver causing corrosion which leads to equipment failure. Sulphur free or peroxide cured EPDM sponge rolls of material and components converted from them, are safe for use within lighting, electronics and automotive applications as it will not react with metal casings, fittings or wires it comes into contact with.

    As Sulphur Free EPDM is manufactured in blocks, customers are able to order cut sheets, rolls and bespoke components as the materials can be split, laminated or fabricated to order.

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