Neoprene / EPDM Sponge Washers
Neoprene/EPDM sponge washers are designed to create flexible seals between two or more uneven surfaces, preventing the leakage of liquids, air, and the intrusion of debris such as dust and dirt. At Advanced Seals & Gaskets Ltd, we maintain a wide stock of Neoprene/EPDM sponge sheets and rolls, enabling us to convert and supply washers to meet diverse industrial needs quickly.
Our skilled team manufactures Neoprene/EPDM blend sponge washers in thicknesses as thin as 1mm, using advanced machinery capable of handling one-off projects as well as production runs of thousands. Bespoke tooling ensures every washer is produced to exact dimensions, either pressed as individual parts or kiss-cut on rolls for faster application. For larger or thicker washers that cannot be pushed, our CNC oscillating knife can efficiently produce them with precision.
What are Neoprene/EPDM Blend Sponge Washers?
Washers are flat rings or discs placed between surfaces or between a nut and bolt to distribute pressure, act as spacers or seals, and reduce friction, vibration, and instability. Our Neoprene/EPDM blend sponge washers are made from high-quality, closed-cell material, combining the excellent resistance of EPDM with the added durability, tensile strength, and flammability resistance of Neoprene.
Blended sponge rubber is increasingly popular as a low-cost, general-purpose material. It is durable, capable of withstanding heavy loads, and effectively absorbs vibrations. Its UV, water, and air resistance make it ideal for applications such as solar panels, construction, and other outdoor sealing requirements.
Product Enquiry
For information on Neoprene / EPDM Sponge Washers please complete the following quick enquiry or call us on +44(0)1384 252555.
Product Specification & Key Characteristics
- Colour: Anthracite
- Density: <90 kg/m³
- Fire Propagation Index: <12
- Operating Temperature: -30°C to +100°C
- Thickness: 1mm – 100mm (can be laminated for greater thickness)
Full technical data is available upon request or can be downloaded from our online portal.
Self-Adhesive Neoprene/EPDM Blend Sponge Washers
Neoprene/EPDM blend sponge washers can be supplied plain or laminated with self-adhesive options from ASG. Adhesives are available in permanent/peel (removable) and low, medium, or high tack options, applied to one or both faces with removable release paper. Our team can guide you in selecting the most suitable choice for your application.
Why Use Neoprene/EPDM Blend Sponge Washers?
Manufactured from a high-quality blend of Polychloroprene (Neoprene) and Ethylene Propylene Diene Monomer (EPDM), these washers provide a stable, flexible, and durable sealing solution. The combination offers:
- UV, ozone, and weathering resistance
- Closed-cell structure, making it air and water-resistant
- Excellent ageing properties
- Good acid resistance (limited oil resistance)
- Flame-retardant properties conforming to UL94 HF1
- Wide operating temperature range of -40°C to +85°C
These properties make Neoprene/EPDM sponge washers suitable for both internal and external applications across industries such as heating & ventilation, white goods, automotive, electrical, and general sealing applications.
The Benefits of Neoprene/EPDM Blend Sponge Washers
- Closed-cell structure prevents bacteria and mould growth.
- Air and watertight sealing
- Excellent weathering, UV, and ozone resistance
- Vibration absorption
- High tensile strength and ability to withstand heavy loads
- Durable and long-lasting
The Advantages of Using Neoprene/EPDM Blend as a Material
- Flexible, resilient, and excellent recovery
- Flame retardant – tested to FMVSS302 and UL94 HBF
- Ideal closed-cell structure for sealing air and water, preventing bacteria build-up
- Exceptional UV and ozone resistance
- Thermal, sound, and vibration insulation
- Good resistance to acids
- Wide operating temperature range
Key Characteristics and Properties of Both Materials
By combining Neoprene and EPDM, these sponge washers deliver a versatile material solution that performs reliably across diverse industrial and commercial applications, offering both durability and superior sealing performance.
Please contact us using the form below or by calling us on +44(0)1384 252555.