Synthetic Cork Washers

Here at Advanced Seals & Gaskets, we offer a range of high-quality washers, some of which are produced using different grades of cork including synthetic bonded cork. Using state of the art machinery and in-house facilities, our highly skilled workforce are able to transform customers' drawings or samples which would detail the Outer Diameter (OD), Internal Diameter (ID) and thickness, ensuring the final product is to their exact specification. 

Depending upon the size and quantity of washers required, we have a machine that can manufacture the final product, from one-off samples to multi-thousand batches, one of our many automated presses or CNC machines can provide a solution. Our onsite laminating service not only allows us to laminate layers of cork to create greater thicknesses but also enables us to supply synthetic bonded cork washers covered with a range of self-adhesives, foils and even layers of other materials.

What are Synthetic Cork Washers?

Washers are a flattened ‘ring’ of material that is placed between 2 surfaces to reduce friction and prevent unsteadiness, it creates a smooth, level surface for nuts/bolts to rest on, to create a better fit for nuts/bolts and used as an air/water tight seal. 

Synthetic bonded cork or synthetic cork is a mix of synthetic rubber and cork granules bound together using a liquid binder.  The addition of rubber creates a speckled, darker appearance.  This material is often used where the washer will be exposed to fuel and oil, and where a water tight seal is crucial.

Synthetic Cork Washers

Product Enquiry

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






    Product Specification & Key Characteristics

    • Flexible and compressible
    • Moderate resistance to weathering and fungus growth
    • Compatible with a range of fluids
    • Sound and vibration control
    • Easy to fabricate
    • Suitable for low and medium bolt pressure
    • Improved resistance to solvents and oil

    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 Synthetic Cork Washers

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    Why use Synthetic Cork Washers?

    Washers are a flattened ‘ring’ of material that is placed between 2 surfaces to reduce friction and prevent unsteadiness, it creates a smooth, level surface for nuts/bolts to rest on, to create a better fit for nuts/bolts and used as an air/watertight seal. Synthetic bonded cork or synthetic cork is a mix of synthetic rubber and cork granules bound together using a liquid binder.  The addition of rubber creates a speckled, darker appearance. This material is often used where the washer will be exposed to fuel and oil, and where a watertight seal is crucial.

    The Advantages of Using Synthetic Cork Washers

    Advanced Seals & Gaskets work with a network of material suppliers and manufacturers allowing us to supply synthetic cork washers in a variety of sizes and thicknesses. Using synthetic cork washers offers many desirable qualities including thermal insulation, noise and vibration absorption properties and sealing against air, water and chemical leaks.

    Cork is chemically inert, resistant to fungus and mould growth, anti-static, flexible and durable, often used to fill irregularities between surfaces, fill gaps, seal against water, gas and air, provide a smooth and even surface for fastenings, allowing for a better fit. Cork material is easy to cut and to work with,  it holds adhesive well and due to its flexible nature fits and adheres to most surfaces. 

    Different Grades

    Advanced Seals & Gaskets Ltd can offer different grades of cork washers for use within various industries each with its own unique characteristics, depending upon the material with which it is blended.  

    Natural Cork –  a combination of grains of cork and a liquid binder.  Natural Cork is relatively cheap compared to sponge and rubber and can be used as air/dust/water seals, in thermal insulation, acoustic and anti-vibration applications.

    Resin-bonded cork –  a lightweight, flexible cork, produced using cork granules bound together using a synthetic resin.  This grade of cork is resilient to certain acids and is often used in water retaining applications.

    Nitrile bonded cork – manufactured using a combination of cork and nitrile rubber granules, giving a speckled appearance.  Washers made from this material can be used where oil and fuel resistance is required, or where high-temperature resistance is required, industries include automotive and general engineering.

    Neoprene bonded cork – Neoprene bonded cork is a combination of cork and neoprene rubber granules, bound together.  This grade has the same speckled appearance as the Nitrile Bonded cork, but with different properties, with the addition of the Neoprene rubber, the cork is suited to sealing at higher temperatures and resistant to weathering and oil.  Neoprene Bonded Cork gaskets are suited to oil, engineering, electrical, anti-vibration and soundproofing applications.

    Have a Question about Synthetic Cork Washers?

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