EPDM Sponge Gaskets

Here at Advanced Seals & Gaskets Ltd, we offer a range of high-quality gaskets, cut using a multitude of different materials, one of which includes an EPDM sponge in a medium density. 

EPDM sponge or EPDM foam as it is sometimes referred to as one of our core stock materials is readily available meaning we can produce any quantity of EPDM sponge gasket you require, whether it’s a small sample batch or a multi-thousand run, we have a machine to quickly and accurately produce perfectly formed gaskets in a range of sizes, these include a number of presses, CNC and kiss-cut machines. 

Our gaskets can be produced plain or with a choice of finishes including foils, self-adhesives or laminated to other materials, depending on the size and quantity of the gasket, they can be supplied as loosely packed parts or kiss-cut on rolls. 

As our EPDM gaskets are produced in-house on state of the art machinery, we can manufacture bespoke items to match our customer's samples/drawings, from a simple rectangular picture frame gasket to a more complex shape with cut-outs - we can offer a solution.

What are EPDM Sponge Gaskets?

EPDM is an abbreviation of Ethylene Propylene Diene Monomer which are the chemical components used to manufacture this sponge. 

EPDM sponge is a strong, synthetic material that is closed cell making it an ideal material for internal and external sealing applications where minimal compression is required for the strips to work effectively. 

EPDM sponge gaskets can sometimes come in the form of a strip or pad but are generally an intricately cut shaped piece of material placed between two surfaces to create a low-pressure seal preventing the leakage of liquids or gas and to seal against the intrusion of dust and debris when under compression.

Epdm Sponge Gaskets

Product Enquiry

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






    Product Specification & Key Characteristics

    • Colour: Black and white options (medium-density only)
    • Density: 90 – 140kg/m3
    • Flammability Tested: FMVSS 302  
    • Operating Temperature: -20°c to +85°c
    • Thickness: 1mm - 50mm (without laminations)
    • Environmental Resistances: Ozone, UV, weathering
    • Chemical Resistances: ketones, diluted acids and alkalis

    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 EPDM Sponge Gaskets

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    Why use EPDM Sponge Gaskets?

    EPDM sponge gaskets are used to fill gaps and irregularities between two surfaces and to provide a solution to unwanted rattles, noise, vibrations, to seal against air, gas, dust and liquids, and can also be used to cushion between moving parts to reduce friction and damage to components and equipment. 

    In order for a gasket to work effectively, it needs to compress and fill the entire space to create pressure and an airtight protective seal.  As EPDM sponge is a closed-cell material, even when not compressed, its nitrogen gas-filled cells prevent the passage of air, liquids and gasses, the releasing of nitrogen gas gives the material its strong compression set and recovery characteristics.

    EPDM sponge gaskets are a popular product in a variety of applications for a number of reasons and can be found used within the construction industry, in automotive interiors, electronic, lighting systems ventilation glazing seals and door seals. 

    The Benefits of Using EPDM Sponge Gaskets

    • Noise, vibration, shock and abrasion reduction 
    • Flexible with good compression recovery
    • Cost-effective and readily available
    • Naturally compressible to create the perfect seal to control air and water leaks
    • Closed-cell structure prevents bacteria and moulds build-up
    • Excellent properties making it popular for use in a range of industries and applications
    • Easy to convert into a range of products including gaskets, and will hold most adhesives well

    The Advantages of Using EPDM Sponge Gaskets

    EPDM sponge gaskets are produced using a strong, synthetic material which is closed cell making it an ideal material for internal and external sealing applications where minimal compression is required for the material to work effectively, it has an excellent lifespan even when used outdoors and is free from dust and fibre.

    EPDM sponge gaskets can be manufactured in a huge range of sizes and thicknesses, with a choice of foils and self-adhesives applied to one or both faces. For very thick gaskets or a combination of properties that are required, EPDM sponge washers can be laminated to other materials for use within more specialist applications. 

    EPDM sponge is a popular choice of material that is air and watertight, 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.

    Grades of EPDM Sponge Gaskets Available

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

    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 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 spec sheets or speak to a member of our sales team.

    Have a Question about EPDM Sponge Gaskets?

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