Nitrile Cork Washers
Nitrile Cork Washers
Advanced Seals & Gaskets produces high-quality washers from an array of materials, including Nitrile Bonded Cork.
At Advanced Seals & Gaskets Ltd, we manufacture premium nitrile bonded cork washers to meet the demands of a wide range of industries, including automotive, construction, manufacturing, and fuel sectors. Our in-house production combines skilled craftsmanship with advanced machinery, enabling us to produce washers in virtually any size, thickness, or quantity.
Washers can be supplied plain, self-adhesive on one or both faces, or kiss-cut on rolls for quick and efficient application in production environments. Every washer is made according to customer specifications, whether from dimensions, drawings, or samples, ensuring a perfect fit for each application.
What are Nitrile Bonded Cork Washers?
Nitrile bonded cork washers are precision-cut rings placed between two surfaces to reduce friction, distribute pressure, and provide a smooth, level seating surface for nuts, bolts, and other fasteners. They can also function as air- or watertight seals, cushioning components and protecting them from wear.
This high-performance material combines natural cork granules with nitrile rubber, creating a brown material with black pigments dispersed throughout. The nitrile rubber enhances resistance to oil, fuel, hydrocarbons, and water, giving the washers both durability and flexibility. Sheets and rolls of nitrile-bonded cork are cut in-house to produce washers tailored to your exact requirements.
Product Enquiry
For information on Nitrile Cork Washers please complete the following quick enquiry or call us on +44(0)1384 252555.
Product Specification & Key Characteristics
- Colour: Brown with black specks
- Bonded Materials: Nitrile rubber & natural cork
- Density: 0.56 – 0.70 g/cm³
- Resistances: Oils, hydrocarbons, water, sound suppression
- Temperature Range: -20°C to +120°C
- Thickness: 0.8mm – 25mm (can be laminated for greater thickness)
Full technical data sheets are available upon request or via our online materials portal.
Washers
Washers serve multiple functions: gap-filling, sealing, cushioning, and spacing to reduce friction and wear between surfaces and fasteners. At Advanced Seals & Gaskets, we manufacture washers in a wide range of materials, including:
- EPDM, neoprene, and silicone
- Solid rubbers and sponge materials
- Plastics, polyethene, PVC, and polyester
- Cork, textiles, and speciality compounds
Our lamination service allows us to produce washers of greater thickness, with adhesive or foil options tailored to the application, creating bespoke solutions for complex sealing challenges.
Why use Nitrile Bonded Cork Washers
Nitrile-bonded cork washers are highly valued across industries for their resistance to vibration, water, oil, and solvents. They provide a reliable, flexible seal at temperatures up to 120°C and are an economical choice for applications exposed to fuel or mechanical wear.
By manufacturing these washers in-house, we can offer custom finishes, adhesives, or laminations, combining material properties to produce robust, high-performance washers. Typical industries include automotive, engineering, construction, industrial, and manufacturing.
Different Grades
Cork washers are available in multiple grades to suit a variety of applications:
- Natural cork: Offers excellent thermal and sound suppression, sealing against air, dust, and water.
- Neoprene bonded cork: Combines cork’s natural properties with neoprene’s water and weather resistance, providing a durable seal against UV and ozone exposure.
- Synthetic bonded cork: Highly compressible, flexible, and resistant to oil, fuel, and vibration, ideal for industrial machinery.
Contact our team to discuss which cork washer grade best suits your application.
Benefits of Nitrile Bonded Cork Washers
- Effective sound suppression
- Excellent thermal properties
- Can be bonded with other materials for bespoke performance
- Resistant to fuel and oil
- Anti-vibration properties
- Made from natural, sustainable materials
Advantages of Using Nitrile Bonded Cork Washers
Nitrile bonded cork washers are highly sought-after across industries for applications requiring:
- Resistance to ozone, oils, fuels, and heat
- Surface protection and reliable sealing
- Spacing, cushioning, and vibration absorption in mechanical components
They are widely used in:
- Sumps, inspection doors, and hatches
- Valve covers and electrical transformers
- Switchgear, general covers, and lids
The combination of flexibility, durability, and resistance to environmental and chemical stressors makes nitrile-bonded cork washers a versatile and cost-effective solution for engineers, manufacturers, and industrial applications.
Please contact us using the form below or by calling us on +44(0)1384 252555.





















