Nitrile Rubber
Nitrile rubber, also known as NBR (Nitrile Butadiene Rubber), is a synthetic rubber copolymer of acrylonitrile and butadiene. It is widely used in various industries due to its excellent resistance to oils, fuels, and chemicals. Our high-quality Nitrile Rubber products are designed to meet the most demanding industrial applications.
Key Features of Nitrile Rubber
- Excellent resistance to oils, fuels, and chemicals
- Good abrasion resistance and tensile strength
- Wide operating temperature range (-40°C to +120°C)
- Low compression set
- Cost-effective alternative to more expensive elastomers
Technical Specifications
| Property | Value | Test Method |
|---|---|---|
| Tensile Strength | 15-25 MPa | ASTM D412 |
| Elongation at Break | 300-600% | ASTM D412 |
| Hardness (Shore A) | 40-90 | ASTM D2240 |
| Specific Gravity | 1.00-1.20 | ASTM D297 |
| Temperature Range | -40°C to +120°C | - |
Nitrile Rubber Grades Available
| Grade | Acrylonitrile Content | Special Properties | Common Applications |
|---|---|---|---|
| Low Nitrile | 18-25% | Good flexibility at low temperatures | Automotive fuel hoses |
| Medium Nitrile | 26-35% | Balanced oil and fuel resistance | Gaskets, seals, O-rings |
| High Nitrile | 36-50% | Excellent chemical resistance | Industrial hoses, oilfield equipment |
Nitrile Rubber FAQ
What are the main advantages of Nitrile Rubber?
Nitrile Rubber offers excellent resistance to oils, fuels, and many chemicals, making it ideal for automotive and industrial applications. It maintains good mechanical properties across a wide temperature range and provides superior abrasion resistance compared to many other elastomers.
How does Nitrile Rubber compare to natural rubber?
While natural rubber has better elasticity and lower-temperature performance, Nitrile Rubber far surpasses it in oil and fuel resistance, making it the preferred choice for applications involving petroleum-based products. Nitrile Rubber also has better aging characteristics when exposed to oils and chemicals.
Can Nitrile Rubber be used for food contact applications?
Standard Nitrile Rubber is not suitable for food contact. However, special FDA-compliant grades are available that meet food contact regulations. These specialized formulations must be specifically requested and are typically more expensive than standard Nitrile Rubber compounds.
Applications of Nitrile Rubber
- Automotive seals and gaskets
- Oil and fuel hoses
- Hydraulic seals
- Industrial rolls and belts
- Printing industry applications
- Medical gloves (special formulations)
- Oilfield equipment components
Custom Nitrile Rubber Solutions
We offer custom compounding services to meet specific application requirements. Our technical team can adjust the acrylonitrile content, hardness, and other properties to create the perfect Nitrile Rubber compound for your needs. Common modifications include:
- Special color formulations
- Enhanced flame retardant properties
- Improved low-temperature flexibility
- FDA-compliant food-grade formulations
- Conductive or static-dissipative compounds
Nitrile Rubber Manufacturing Process
Our Nitrile Rubber is manufactured using state-of-the-art processes to ensure consistent quality. The production involves:
- Raw material selection and quality control
- Precision compounding and mixing
- Continuous monitoring of process parameters
- Comprehensive testing of final product
- Quality assurance before shipment
Nitrile Rubber FAQ (Continued)
What is the shelf life of Nitrile Rubber products?
Properly stored Nitrile Rubber typically has a shelf life of 3-5 years. Storage conditions should be cool (below 25°C), dry, and away from direct sunlight and ozone sources. The actual usable life depends on the specific formulation and storage conditions.
How does temperature affect Nitrile Rubber performance?
Nitrile Rubber maintains its properties across a wide temperature range (-40°C to +120°C). At higher temperatures, the material may harden and lose elasticity over time. At very low temperatures, it becomes less flexible. Special low-temperature grades are available for extreme conditions.
Is Nitrile Rubber resistant to all chemicals?
While Nitrile Rubber has excellent resistance to many petroleum-based products and aliphatic hydrocarbons, it is not suitable for use with strongly polar solvents like ketones, esters, or chlorinated hydrocarbons. Always consult chemical compatibility charts for specific applications.
Quality Assurance
Our Nitrile Rubber products undergo rigorous testing to ensure they meet international standards. Each batch is tested for:
- Tensile strength and elongation
- Hardness (Shore A)
- Compression set
- Chemical resistance
- Aging characteristics
- Oil swell resistance
Environmental Considerations
Nitrile Rubber is more environmentally friendly than some alternative materials because:
- It is synthetic and doesn't contribute to deforestation
- Modern production processes have reduced VOC emissions
- Many Nitrile Rubber products can be recycled or repurposed
- Our formulations comply with RoHS and REACH regulations
Nitrile Rubber FAQ (Final Section)
Can Nitrile Rubber be bonded to metal?
Yes, Nitrile Rubber can be effectively bonded to metal substrates using specialized adhesives and bonding techniques. Proper surface preparation is crucial for achieving strong, durable bonds. We offer pre-bonded Nitrile Rubber/metal components for many applications.
What certifications do your Nitrile Rubber products have?
Our Nitrile Rubber products meet numerous international standards including ASTM, ISO, and DIN specifications. We can provide material certifications including RoHS, REACH, and FDA compliance (for specific food-grade formulations) upon request.
How do I choose the right Nitrile Rubber grade for my application?
Selection depends on several factors: the specific chemicals encountered, temperature range, mechanical requirements, and regulatory needs. Our technical team can help analyze your requirements and recommend the optimal Nitrile Rubber grade for your particular application.