PVC Nitrile Sponge Seals

PVC Nitrile Sponge Seals

Sponge seals and sealing components are manufactured and supplied by Advanced Seals & Gaskets Ltd using materials from worldwide high quality suppliers, one of which includes PVC Nitrile Sponge Rubber.  PVC Nitrile sponge or PVC-NBR seals  can be taken in the form of gaskets, washers, strips and extrusions, which are all designed for the purpose of preventing leaks or the ingress of air, fluids and gas.  All our PVC Nitrile sponge seals are made to order and are produced by following samples or drawings provided by customers to ensure the final product perfectly fits the application.  As each form of PVC nitrile seal needs to be manufactured using a different process, ASG have invested heavily in various machinery allowing us to offer seals in both high and low volumes at competitive prices.

Product Enquiry

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

    Key Characteristics of PVC Nitrile Sponge Rubber

    • Colour: Black
    • Temperature Range: -50°c to +116°c
    • Density: 55-70kg/m3
    • Resistances: UV, ozone, grease, oil, many chemicals, mould, fungus, rot, fire
    • Flammability Tests: Class O resistance to flame spread


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

    What are PVC Nitrile Sponge Rubber Seals?

    PVC Nitrile sponge rubber is made from a blend of Nitrile and PVC polymer compounds, creating a soft, flexible, dust free and class O closed cell material with a skin finish on both faces.  PVC Nitrile sponge seals are devices that are used to join surfaces together, acting  as a separator or a barrier to prevent liquids, particles  or gases escaping or penetrating the application. ‘Seal’ is a generic term for a group of products often taking the form of cut gaskets, strips, washers, extruded or moulded profiles and edge trims.

    Why use PVC Nitrile Sponge Rubber Seals?

    PVC Nitrile is one of many closed-cell sponge materials used for the production of seals and sealing devices, formulated to offer a number of properties making it suitable for use as air, gas and watertight seals, as thermal insulation and to reduce unwanted or excess vibration and noise.  PVC nitrile sponge is impact, heat, UV and Ozone resistant and flame retardant.  PVC Nitrile seals are safe to use in building and construction applications as it is dust free, therefore will not affect the air quality and are tested to class O fire test specifications.   Many PVC Nitrile sponge seals are cut from rolls of material, which gives us the flexibility to offer a choice of very small or very large sealing components.

    The Benefits of Using PVC Nitrile Sponge Rubber

    • temperature range of -50°c to +116°c
    • Excellent ozone, weathering and UV light resistance
    • Can be used for thermal insulation
    • Flame Retardant to Class O standards
    • can be supplied in either plain or self-adhesive backed
    • prevents condensation and corrosion
    • Closed cell structure prevents bacteria and mould build up

    Other Grades of Using PVC Nitrile Sponge Rubber

    There are different types and grades of sponge rubber 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.

    Poron sponge is closed cell polyurethane sponge rubber, which offers excellent compression resistance, good chemical resistance and longevity.  This material is low out-gassing, non-fogging and will not become brittle and break down over time.

    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.  Its is an excellent choice of material for us as protective sponge, expansion joints and anti-vibration applications.

    Advantages of Using PVC Nitrile Sponge Rubber Seals

    Seals are often manufactured using PVC Nitrile sponge as they’re available in a range of sizes and thicknesses and can be cut/fabricated from rolls of material or even extruded into certain profiles to order.  PVC Nitrile sponge seals  offer moisture, flame, UV and Ozone resistant properties which prevents condensation, corrosion and the growth of bacteria, rot and fungus. This material has some resistance to chemicals, grease and oil, combined with a working temperature range of -50°C to 116°C and is flammability tested to meet Class O specifications, meaning the material doesn’t burn and flame spread is reduced making the seals suitable for use in HVAC, refrigerators, building & construction, sealing and pipework insulation.

    Have a Question About PVC Nitrile Sponge Seals?

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