Product Description
Custom Rubber Ring Washers are precision-engineered elastic sealing components designed to provide reliable sealing, cushioning, vibration isolation, and load distribution in bolted and fastened assemblies. Unlike standard washers, custom rubber ring washers can be tailored in size, material, hardness, and performance to meet specific application requirements.
By selecting custom rubber ring washers, engineers gain enhanced sealing efficiency, longer service life, and improved system reliability-especially in applications where standard sizes or materials cannot meet performance demands.
Custom Fit, Better Performance:
Precisely matched inner diameter, outer diameter, and thickness ensure optimal compression and sealing without over-stressing fasteners.
Our custom rubber ring washers are manufactured using premium elastomer compounds including NBR, EPDM, Neoprene, Silicone, NR, HNBR, and FKM (Viton®), offering excellent resistance to oils, fuels, chemicals, water, ozone, and extreme temperatures.
Technical Parameters (Typical NBR 70)
| Property | Unit | Test Method | Value |
| Material | - | - | NBR (Nitrile Rubber) |
| Hardness | Shore A | ASTM D2240 | 70 ± 5 |
| Tensile Strength | MPa | ASTM D412 | ≥ 10 |
| Elongation at Break | % | ASTM D412 | ≥ 300 |
| Compression Set | % | ASTM D395 B | ≤ 25 (22h / 70°C) |
| Temperature Range | °C | - | -40 to +100 |
| Thickness Tolerance | mm | ISO 3302-1 | ± 0.2 |
Material Options
• NBR (Nitrile Rubber)
Excellent oil and fuel resistance, widely used in automotive and industrial sealing applications.
• EPDM Rubber
Outstanding resistance to weather, ozone, UV, water, and steam. Ideal for outdoor and water system applications.
• Silicone Rubber
Superior high- and low-temperature performance with FDA compliance, suitable for food, medical, and electronics industries.
• FKM (Viton®)
Exceptional chemical and high-temperature resistance for demanding environments such as fuel systems and chemical processing.
Material Selection Tip:
Choose the rubber compound based on operating temperature, media exposure, compression requirements, and service life expectations.
Key Features & Advantages
- Custom inner & outer diameters for perfect fit
- Excellent sealing and leak prevention
- Effective vibration and noise reduction
- Protects surfaces from damage and wear
- Wide material and hardness selection
- Cost-effective alternative to complex sealing structures
Main Applications
- Automotive engines and body assemblies
- Plumbing and water sealing systems
- Electrical and electronic enclosures
- HVAC equipment and duct mounting
- Industrial machinery and equipment
- Appliances and consumer products
Customization Capabilities
We provide full customization services for Custom Rubber Ring Washers:
- Custom ID / OD / thickness
- Shore A hardness from 40–90
- Standard and custom colors
- PTFE coating or fabric reinforcement
- Adhesive backing available
- FDA, RoHS, REACH compliant materials
Factory Strength & Quality Assurance
Xiamen Best Seal Imp. & Exp. Co., Ltd. is a professional rubber sealing manufacturer with over 20 years of experience. All custom rubber ring washers undergo strict inspection including dimensional checks, hardness testing, tensile strength verification, and visual inspection.
Certifications: ISO 9001, RoHS, REACH, FDA (food-grade materials available)
Free samples, fast quotations within 24 hours, and flexible OEM & ODM support are available. Contact us today to discuss your custom rubber washer project.
Why choose us?
- Our Rubber Washers are available in different sizes, shapes, and materials to suit specific needs and requirements.
- We take the realization of customer, employee and social satisfaction as the social value of our existence.
- With years of experience in the industry, our knowledge and expertise in Rubber Washers make us a reliable supplier.
- The company's quality policy is 'product innovation, quality improvement, fashion aesthetics, and customer satisfaction'.
- Our Rubber Washers are highly versatile and can be used in a variety of industrial and commercial applications.
- Our company will, as always, adhere to the enterprise spirit of "down-to-earth, do Custom Rubber Ring Washers well" and insist on independent innovation.
- Our Rubber Washers are available in different colors and finishes to match specific design requirements.
- We uphold the core values of integrity, rules, teamwork, excellence and win-win, and insist on benefiting people and ourselves and sustainable management.
- We use eco-friendly and sustainable manufacturing processes for our Rubber Washers, minimizing our impact on the environment.
- We take innovation, excellence, and commitment to our enterprise spirit, and try to provide technical Custom Rubber Ring Washers and enthusiastic service to customers.
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