Overview
The EPDM Washer from Shanghai Malaxy Foreign Trade Co., Ltd. is a high‑performance rubber sealing component engineered to provide reliable leak‑proof sealing, vibration dampening, and load distribution in industrial, construction, and automotive applications. Manufactured from premium Ethylene Propylene Diene Monomer (EPDM) synthetic rubber, our washers offer exceptional durability in harsh outdoor environments. Available in flat rubber washer and metal‑bonded EPDM sealing washer configurations, all products are fully customizable to meet your project specifications.
Key Features
Superior Weather Resistance – Outstanding resistance to UV radiation, ozone, and moisture, ensuring long‑term performance in outdoor applications without cracking or degradation.
Wide Temperature Range – Operates reliably from -40°C to +150°C (short‑term up to +180°C), suitable for both extreme cold and high‑temperature environments.
Excellent Sealing Performance – Provides watertight sealing against water, air, gases, and fluids; ideal for preventing leaks in bolted connections.
Chemical & Abrasion Resistance – Good resistance to water, steam, alcohols, brake fluids, and many acids/alkalis; compatible with most industrial media.
Vibration Dampening & Load Distribution – Rubber elasticity absorbs vibration and noise while evenly distributing clamping load to protect fastened surfaces.
Customizable – Available in any size (ID 3mm–20mm+, custom thickness), Shore A hardness (30–90), and color (black standard, white, custom).
Material Properties
Property | Specification |
|---|
Material | Ethylene Propylene Diene Monomer (EPDM) |
Hardness (Shore A) | 30–90 (standard 70±5) |
Tensile Strength | ≥10 MPa |
Density | 1.08–1.10 g/cm³ |
Temperature Range | -40°C to +150°C (permanent); up to +180°C (short‑term) |
Color | Black (standard); white / custom colors available |
Certifications | ISO 9001, RoHS, FDA (on request) |
Applications
Roofing & Construction – Sealing washer for self‑drilling roofing screws, metal roofing panels, flashing systems, and solar PV mounting frames
Plumbing & Piping – Waterproof sealing in faucets, valves, pipe connections, and water hose fittings
HVAC Systems – Air and moisture sealing in ductwork, ventilation systems, and outdoor units
Automotive – Sealing in engine components, radiators, braking systems, and weatherstripping
Electrical Enclosures – IP‑rated watertight sealing for junction boxes and outdoor electrical cabinets
Types Available
Type | Description | Best For |
|---|
Flat EPDM Washer | Simple disc‑shaped rubber washer; cost‑effective and versatile | General sealing, plumbing fixtures, electrical enclosures |
Bonded EPDM Sealing Washer | EPDM rubber bonded to metal core (steel/stainless steel) | Roofing screws, heavy‑duty applications, high‑pressure environments |
Quality Assurance
As a leading fastener manufacturer in China, Shanghai Malaxy ensures all EPDM washers meet rigorous quality standards. Our factory is ISO 9001 certified, with strict quality control from raw material inspection to finished product testing. We offer:
Fast Sample Lead Time – 3‑7 days for prototype samples
Mass Production Capacity – High‑volume production with consistent quality
Global Shipping – Efficient logistics to Europe, North America, Australia, and Southeast Asia
Customized Packaging – Blister packs, poly bags, or bulk boxes per customer requirements
Why Choose Shanghai Malaxy?
Industry Leader – Malaxy is a recognized name in the global fastener industry, serving clients worldwide with reliable fastening solutions
One‑Stop Supply – Complete fastener product range including screws, bolts, nuts, and washers
Competitive Pricing – Factory‑direct pricing with no middleman markup
Technical Support – Professional engineering team to assist with material selection and application design
Order Information
Min. Order Quantity – 5,000 pcs (lower for samples)
Lead Time – 15‑30 days based on order quantity
Shipping – FOB Shanghai, CIF, EXW, or CFR terms available
Payment Terms – T/T, L/C, or Western Union
Contact us today for a quote or to request free samples!
MALAXY, a professional China fastener manufacturer with more than 20 years of manufacturing experience, obtained ISO 9001:2015 certification on August 17, 2026. With a wide range of screws, bolts, nuts, washers, threaded rods, anchors and custom fasteners, plus CE, RoHS and REACH compliance, MALAXY serves B2B buyers in more than 70 countries. Through factory-direct manufacturing, strict quality control and global export experience, MALAXY is committed to providing reliable, high-quality fasteners and long-term OEM and wholesale solutions for international customers.Malaxy Company News
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