Advanced Seals & Gaskets Ltd stock thousands of rolls of sponge materials from a number of worldwide material manufacturers and suppliers, allowing us to offer customers more choice when looking for suitable materials for their application, one of which includes Poron Sponge Rubber. Poron sponge is manufactured at continuous roll lengths  in a range of thicknesses from 0.53 mm to 12.7 mm, with a skin finish on both faces which are stocked here at ASG ready for immediate despatch or conversion.

For non-standard thicknesses we can run the rolls through our state of the art splitting machines to create thicknesses from just 1.5mm resulting in a cell-cell or skin-cell finish. Our onsite conversion facilities comprises of various presses, log cutters, slitters, bandsaws and an oscillating knife, allowing us to convert rolls of material into finished parts including pads, washers, gaskets or strips - all supplied plain or laminated with a choice of our many self-adhesives or foils.

Product Enquiry

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

    Characteristics of Poron Sponge

    • Colour: Black
    • Temperature Range: -40°c to + 90°c
    • Thickness range: 0.53 to 12.7 mm 
    • Roll length: 12.2m - 182.9m (depending on grade & thickness)
    • Resistances: UV, ozone, many chemicals, mould, fungus, rot, fire
    • Flammability Tests: UL-94 HBF and MVSS 302
    • Density range:144 to 480 kg/m3 (depending on grade)

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

    What are Poron Sponge Rubber Rolls?

    Rolls of Poron Sponge are continuous lengths of the material, which can be supplied in full, cut down and supplied as sheets or further converted into finished products. Poron sponge rubber is a closed cell microcellular urethane foam manufactured by casting and curing foamed urethane compound at various thicknesses. These rolls of Poron sponge are a high density, flexible material designed to offer low outgassing, non-fogging and non-corrosive properties suited for use in the production of gaskets, seals and within vibration management applications.  Poron sponge rolls are available in a range of grades, these vary from very soft that are easily compressible and offers enhanced sealability to the firmer grades which are able to manage high energy impact. There is also a slow recovery grade for applications that require a low closure force. 

    Why use Poron Sponge Rubber Rolls ?

    Rolls of Poron sponge are manufactured with a smooth outer skin on both faces, offering a number of properties making it suitable for use to create a watertight seal, as a thermal insulator and to reduce vibration and noise, as well as being impact, chemical, heat, UV and Ozone resistant.

    Poron sponge rolls meets flammability standards UL-94HBF and MVSS 302 even without the need for flame retardant additives being used, it is also low outgassing and non-fogging which prevents it from becoming fragile over time and disintegrating, whilst also being non-corrosive towards parts or machinery as the material is formulated without the use of plasticisers or residual chemicals.

    Customers sometime choose to take Poron sponge in roll form as they give the customer and end user the flexibility to be able to cut their own strips, pads, gaskets or washers as and when they’re required or when larger surface areas need to be covered.

    Benefits of using Poron Sponge Rubber

    • Excellent compression set resistance
    • Temperature Range of -40 to +90 °C
    • Good chemical resistance
    • Flame Retardant to UL-94HBF and MVSS 302
    • non-corrosive
    • Easy to fabricate and cut into numerous components 

    Advantages of Using Poron Sponge Rolls

    Poron sponge materials are a strong, flexible high quality material which are manufactured in a range of roll sizes and thicknesses available for despatch in full sized rolls, sheets or pre-cut finished usable parts. Poron sponge and components cut from these rolls of material offer an excellent compression set resistance, creating a durable product which allows for long -term use.

    This non-fogging and low out-gassing foam contains no residual chemicals or plasticizers which means not only will the material not become brittle and disintegrate  - but it will also not contaminate devices or corrode metals around it.

    Poron sponge rolls offer moisture, chemical, UV and Ozone resistant properties which prevents condensation, corrosion and the growth of bacteria, rot and fungus, has a working temperature range of -40°C to +90°C  and is also flame retardant to standards UL-94 HBF and MVSS 302. 

    As Poron is manufactured in roll form, it can easily be converted into longer length strips or tapes, large or small gaskets and washers or taken in sheet form. Poron sponge and components cut from Poron rolls of material  can be found used as trims, glazing seals, anti-vibration pads, automotive and lighting gaskets to name a few.








    Other Grades of Sponge Available

    There are different types and grades of sponge rubber sheets available for use within many industries each with their own unique characteristics. Popular types of sponge rubber include:

    EPDM sponge rubber is a high quality material with excellent weathering, UV and ozone resistance, making it ideal for outdoor sealing. EPDM sponge rubber rolls offer a wide operating temperature range, acoustic, thermal and vibration dampening properties and also good mechanical strength and abrasion resistant properties. Grades of EPDM include medium, firm, high temp and semi open cell.

    Neoprene sponge rubber is a versatile material, featuring  good resilience and resistance to UV and ozone.  It has a working temperature range of -40ºc to +115ºc, good chemical stability, and good general resistance to oils and petroleum-based fuels.

    Silicone sponge is a resilient material with high temperature stability, chemically inert and waterproof. Silicone sponge is closed cell, available in a range of densities (firmness) it has a number of features which make it suitable for outdoor sealing including Ozone, UV resistance and temperature flexibility, meaning it will not freeze/crack.

    Viton sponge is another closed cell variety of sponge rubber offered by ASG. It is manufactured with skin on both faces which increases its tear resistance. It has a wide working temperature range of -25°C to +204°C and good resistance to hydrocarbons, oils, fuels, lubricants, acids, weathering and ozone.

    PVC Nitrile  sponge is suitable for use as air, gas and watertight sealing, as thermal insulation and to reduce unwanted or excess vibration and noise, it is impact, heat, UV and Ozone resistant and flame retardant.

    Industrial sponge rubber is a high quality, open cell natural sponge rubber. The open cell structure enables excellent compression recovery, but also to form around uneven surfaces, limited absorption and circulation of gas and liquids if required. It’s an excellent choice of material for us as protective sponge, expansion joints and anti-vibration applications.


    Have a Question About Poron Sponge Rubber?

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