Product Description
Custom Rubber Washers are flexible, precision-molded sealing components designed to provide effective sealing, cushioning, vibration isolation, and load distribution in a wide range of fastening and assembly applications. Compared with standard off-the-shelf washers, custom rubber washers are engineered to meet specific dimensional, material, and performance requirements.
These washers are widely used in automotive, industrial machinery, plumbing systems, electrical equipment, HVAC installations, and construction applications where standard sizes or materials cannot fully satisfy operating conditions.
Tailored inner diameter, outer diameter, thickness, and material selection ensure optimal compression, improved sealing efficiency, and extended service life.
Custom Rubber Washers can be manufactured from a wide range of elastomer materials including NBR, EPDM, Neoprene, SBR, Natural Rubber, Silicone, HNBR, and FKM (Viton®), offering excellent resistance to oil, fuel, water, chemicals, weathering, ozone, and temperature extremes.
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
1. NBR (Nitrile Rubber)
Excellent oil and fuel resistance with good mechanical strength. Ideal for automotive, hydraulic, and industrial applications.
2. EPDM Rubber
Superior resistance to weather, ozone, UV, water, and steam. Commonly used in outdoor, plumbing, and HVAC systems.
3. Neoprene (CR)
Balanced resistance to oils, chemicals, and weathering. Suitable for general-purpose sealing applications.
4. Natural Rubber (NR)
Outstanding elasticity and tear resistance. Ideal for vibration damping and shock absorption.
5. Silicone Rubber
Wide temperature range and FDA compliance available. Preferred for food, medical, and electronic applications.
6. FKM (Viton®)
Exceptional high-temperature and chemical resistance for demanding industrial environments.
Choose rubber material based on operating temperature, chemical exposure, compression requirements, and expected service life.
Features & Advantages
- Custom sizes for precise fit
- Excellent sealing and leak prevention
- Effective vibration and noise reduction
- Even load distribution to protect surfaces
- Electrical insulation between components
- Wide range of materials and hardness options
- Cost-effective and easy to install
Main Applications
- Automotive engines, body panels, and electrical systems
- Plumbing fittings and water sealing systems
- Electrical and electronic enclosures
- HVAC equipment and duct installations
- Industrial machinery and equipment mounting
- Construction and building applications
Customization Options
We offer comprehensive customization services for Custom Rubber Washers:
- Custom inner diameter, outer diameter, and thickness
- Shore A hardness from 40 to 90
- Standard black or custom colors
- Adhesive backing, PTFE coating, or fabric reinforcement
- FDA, RoHS, and REACH compliant materials
Factory Strength & Quality Assurance
With over 20 years of manufacturing experience, Xiamen Best Seal Imp. & Exp. Co., Ltd. specializes in producing high-quality custom rubber washers, O-rings, gaskets, and other rubber sealing components.
All products are subject to strict quality control including dimensional inspection, hardness testing, tensile strength testing, and visual examination to ensure consistent and reliable performance.
Certifications: ISO 9001, RoHS, REACH, FDA (food-grade materials available)
Free samples, fast quotations within 24 hours, and flexible OEM & ODM services are available. Contact us today to discuss your custom rubber washer requirements.
Why choose us?
- Our company is both a supplier and a manufacturer of Rubber Washers, offering competitive pricing.
- Meeting customers' expectations is our pursuit, while providing customers with quality Custom Rubber Washers is our promise.
- Our Rubber Washers have excellent resistance to aging, weathering, and chemicals.
- Our development goal is to continuously strengthen the company's internal management, at the same time to establish a skilled professional team, inspirational to become a large enterprise.
- Our Rubber Washers are certified to meet various industry standards and specifications.
- The basic principle of our business is to uphold honesty and fairness and be responsible for the safety of shareholders’ assets.
- Our factory is equipped with advanced production facilities that enable us to produce Rubber Washers with high precision and accuracy.
- The company helps customers improve energy efficiency through technological innovation and collaborative innovation.
- Our Rubber Washers are manufactured using advanced production techniques to ensure consistency and quality.
- The products produced by our factory can be praised by customers both in performance and appearance.
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