Product Description
Elastic Rubber Seal Gaskets are flexible sealing components designed to create reliable, leak-proof seals between two mating surfaces. Thanks to their excellent elasticity and resilience, these gaskets effectively compensate for surface irregularities, vibration, and thermal expansion in static and low-pressure sealing applications.


Elastic rubber seal gaskets are widely used in industrial equipment, automotive systems, plumbing connections, electrical enclosures, HVAC installations, and general machinery where consistent sealing performance and durability are required.
High elasticity allows the gasket to maintain sealing force under compression, vibration, and minor misalignment.
Manufactured from high-quality elastomer materials such as NBR, EPDM, Neoprene, Natural Rubber, Silicone, HNBR, and FKM (Viton®), elastic rubber seal gaskets provide excellent resistance to oils, water, chemicals, weathering, ozone, and a wide range of 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 |
| Dimensional Tolerance | mm | ISO 3302-1 | ± 0.2 |
Material Options
Standard Elastomer Materials:
| Material | Full Name | Key Properties |
|---|---|---|
| NR | Natural Rubber | High elasticity, good resilience |
| SBR | Styrene Butadiene Rubber | Abrasion resistant, cost-effective |
| NBR | Nitrile Rubber | Oil and fuel resistant |
| CR | Neoprene® | Weather and ozone resistant |
| EPDM | Ethylene Propylene Rubber | Excellent aging and water resistance |
| EPDM (Peroxide) | Peroxide-Cured EPDM | Improved heat resistance, longer service life |
| IIR | Butyl Rubber | Very low gas permeability |
| XNBR | Carboxylated Nitrile Rubber | High strength, excellent wear resistance |
| PU | Polyurethane | High abrasion resistance |
| HNBR | Hydrogenated Nitrile Rubber | Oil and high-temperature resistant |
| ACM | Polyacrylate Rubber | Excellent hot oil resistance |
| VMQ | Silicone Rubber | Wide temperature range, food-grade available |
| FVMQ | Fluorosilicone Rubber | Fuel and low-temperature resistant |
| FKM | Fluoroelastomer (Viton®) | High temperature and chemical resistance |
| TPR | Thermoplastic Rubber | Flexible, easy to process |
High-Performance Materials:
| Material | Key Properties |
|---|---|
| PTFE | Excellent chemical resistance, low friction |
| FFKM | Extreme temperature and chemical resistance |
Special Compound Options:
| Option | Description |
|---|---|
| Internally lubricated compounds | Paraffin / PTFE / Silicone / Graphite |
| Electrically conductive rubber | Anti-static and EMI shielding |
| UL-approved compounds | Compliant with UL standards |
Surface Treatment Options:
| Treatment | Description |
|---|---|
| Talc powder | Anti-blocking, easy handling |
| Silicone oil | Lubrication and aging resistance |
| PTFE coating | Reduced friction |
| PSA (single-sided) | Pressure-sensitive adhesive |
| PSA (double-sided) | Pressure-sensitive adhesive |
Select gasket material based on operating temperature, pressure level, sealing media, and environmental exposure.
Features & Advantages
- Excellent elasticity and sealing recovery
- Compensates for surface irregularities
- Effective vibration and noise reduction
- Resistant to aging, ozone, and weathering
- Wide material and hardness options
- Easy installation and replacement
Main Applications
- Industrial equipment sealing
- Automotive engines and fluid systems
- Plumbing and water pipe connections
- Electrical enclosures and control boxes
- HVAC systems and duct sealing
- Appliances and general machinery
Customization Options
We offer full customization for Elastic Rubber Seal Gaskets to meet different application requirements:
- Custom shapes, inner & outer diameters
- Various thicknesses and cross-sections
- Shore A hardness from 40–90
- Standard black or custom colors
- PTFE coating, fabric reinforcement, adhesive backing
- FDA, RoHS, REACH compliant materials
Factory Strength & Quality Assurance
Xiamen Best Seal Imp. & Exp. Co., Ltd. is a professional manufacturer of rubber sealing products with over 20 years of experience. Our elastic rubber seal gaskets are produced under strict quality control to ensure consistent sealing performance and long service life.
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 elastic rubber seal gasket requirements.
Why choose us?
- We are committed to providing the best possible Solid Rubber Gaskets and service to our customers.
- Our company insists on using corporate culture to enhance the core competitiveness of the enterprise, so that the enterprise can establish a good social image in its development.
- Our Solid Rubber Gaskets are made with advanced technology and equipment.
- Our company has strong strength in product manufacturing. It is our company's characteristic to design and manufacture various products for users.
- Our Solid Rubber Gaskets are known for their precision, durability, and reliability.
- Our company focuses on the needs of users, provides professional services and makes it an important standard to test the development of the enterprise by deeply adapting to the market and better meeting the users.
- We are constantly innovating and improving our Solid Rubber Gaskets to reflect the latest industry advancements.
- We need to keep pace with market developments, combine our own current conditions, and make full use of technological changes to develop our Elastic Rubber Seal Gasket.
- Our Solid Rubber Gaskets are made with precision and durability in mind.
- Respect customers, understand customers, and create value for customers is our service tenet.
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