EPDM Washers
At Advanced Seals & Gaskets Ltd (ASG), we are proud to be one of the UK’s leading manufacturers and suppliers of non-metallic washers, with EPDM solid rubber as a core material in our range. Our EPDM rubber is supplied in rolls measuring 1.4 metres wide by 10 metres long, with thicknesses starting from 1mm, ready for conversion into high-quality washers.
Our in-house manufacturing process combines skilled craftsmanship with advanced machinery, including oscillating knives, presses, and CNC cutters, enabling us to produce custom EPDM washers quickly, efficiently, and to exact specifications. This ensures high-quality products, cost-effective solutions, and fast turnaround times.
Custom Manufacturing
EPDM washers can be manufactured from customer-provided samples, drawings, or dimensions, specifying outer diameter (OD), inner diameter (ID), and thickness. We offer washers in plain, self-adhesive, or foil-faced finishes, available either as individual cut parts or kiss-cut on a roll.
This flexibility ensures that our customers receive precisely the EPDM rubber washers they need for sealing, insulation, or industrial applications.
What Are EPDM Washers?
A washer is a thin, flat component positioned between surfaces or joints to reduce friction, stabilise fasteners, and provide a level surface for nuts, bolts, or other fixtures. Washers also act as sealing barriers, preventing water, air, dust, or debris from entering critical systems.
EPDM (Ethylene, Propylene, Diene Monomer) is a synthetic rubber known for its durability and versatility. Available in various grades and hardness levels, EPDM washers can be tailored for a wide range of industrial, commercial, and domestic applications. Hardness is measured with a Shore durometer, allowing you to select the ideal material resistance for your project.
Product Enquiry
For information on EPDM Washers please complete the following quick enquiry or call us on +44(0)1384 252555.
Product Specification & Key Characteristics
- Colours: Black, White/Blue (FDA)
- Grades: High Temperature, WRAS Approved, Commercial, FDA
- Shore Hardness: 40 – 90
- Resistances: UV, Ozone, Water
- Temperature Range: -50°C to +150°C
- Thickness: Custom thickness available on bespoke mouldings
Complete technical data can be supplied upon request or downloaded via our online portal.
Why Use EPDM Washers?
Custom EPDM rubber washers form a secure, impervious seal, withstanding impacts and environmental stress. They operate across a broad temperature range (-30°C to +110°C) and are highly resilient to UV rays, ozone, and varying weather conditions, making them suitable for both indoor and outdoor applications.
EPDM washers also resist animal and vegetable oils, chemicals, steam, oxygenated solvents, and electrical currents. Their waterproof and durable properties make them ideal for roofing, solar panels, deep-sea applications, and noise reduction in household appliances.
Available in various grades and hardnesses, EPDM washers can be supplied as pre-cut components, rolls, or sheets for customised solutions.
Advantages of EPDM Rubber Washers
- Resistant to ozone, water, and weathering
- Durable and long-lasting
- Wide variety of grades and hardnesses
- Resistant to chemicals, oils, steam, and solvents
- Can be cut into bespoke gaskets or washers
- Creates an air- and water-tight seal
Different Grades
We offer a range of specialist EPDM materials to suit your application:
- FDA Grades – Food-quality EPDM in blue and white, suitable for food and pharmaceutical applications. Resistant to oils, non-toxic, and operational from -25°C to +140°C.
- WRAS Approved EPDM – Suitable for potable water, meeting BS 6920-1:2000 and BS 6920-1:2014 standards. Resists weathering, ozone, ageing, and chemicals. Operational from -40°C to +120°C.
- Peroxide Cured EPDM – Offers superior temperature, heat, oil, and chemical resistance for demanding environments such as nuclear facilities.
Are you unsure which EPDM grade is best suited for your application? Contact us for advice or request samples of our materials—our in-house team can help you find the perfect solution.
Please contact us using the form below or by calling us on +44(0)1384 252555.





















