Nitrile Rubber Gaskets
Model:KXT 1700
Nitrile Rubber Gaskets are cut from rubber sheets or mould pressing. Any sizes and shapes can be produced. Whether you need one part, or one million parts, our gasket division can cut just about any size and shape that you can imagine, from just about any material.
Nitrile Rubber Gaskets – KXT 1700
Kaxite Sealing, a trusted China rubber gasket manufacturer, presents the KXT 1700 Nitrile Rubber Gasket – a high-performance sealing solution engineered for applications where exceptional oil, fuel, and solvent resistance are critical. Nitrile Butadiene Rubber (NBR), also known as Buna-N, is a premium synthetic elastomer that delivers outstanding resistance to petroleum-based fluids, making it the preferred choice for automotive, petrochemical, and industrial sealing applications.
Why KXT 1700? Nitrile rubber offers excellent resistance to oils, greases, fuels, and mineral oils, maintaining its physical properties across a wide temperature range (-25°C to +120°C). With high tensile strength, good abrasion resistance, and excellent compression set characteristics, NBR gaskets provide long-lasting, reliable seals in demanding fluid-contact environments.
As a leading NBR gasket supplier in China, Kaxite offers the KXT 1700 in a comprehensive range of standard sizes (inch and metric) as well as custom dimensions, shapes, and hardness grades. We support various configurations – die-cut, waterjet-cut, moulded, and calendered – to meet your specific flange and installation requirements. Request a free sample or get a wholesale quote today.
Temp. Range (Continuous)-25°C to +120°C
Hardness (Shore A)40–80 (standard 70 ± 5)
Tensile Strength≥ 13 MPa
Oil & Fuel ResistanceExcellent
Abrasion ResistanceGood
ComplianceASTM D2000, REACH, RoHS
Why KXT 1700 Nitrile Rubber Gasket?
- Outstanding Oil & Fuel Resistance – Excellent resistance to mineral oils, greases, diesel, petrol, and hydraulic fluids
- Excellent Solvent Resistance – Performs well in contact with aliphatic hydrocarbons and many organic solvents
- High Tensile & Tear Strength – Withstands mechanical stress and maintains sealing integrity
- Low Compression Set – Maintains long-term sealing force under continuous load
- Versatile Hardness Options – Custom 40–90 Shore A to match your application
- Custom Sizes & Shapes – Die-cut, waterjet-cut, moulded, or calendered to your specifications
Available Configurations – Cut, Moulded & Custom Profiles
Kaxite offers nitrile rubber gaskets in multiple configurations to suit different installation needs and sealing challenges. All types are manufactured from high-quality NBR compound with full traceability.
Die-Cut NBR Gaskets
Precision cut from NBR rubber sheets using high-quality dies, offering cost-effective production for standard shapes and sizes. Ideal for general flange sealing, automotive gaskets, and industrial equipment covers. Available in thicknesses from 0.5 mm to 25.0 mm.
Waterjet-Cut NBR Gaskets
High-precision waterjet cutting for complex shapes and tight tolerances. This method is ideal for non-standard geometries, large-diameter flanges, and applications where dimensional accuracy is critical. No heat-affected zones ensure consistent material properties.
Moulded & Calendered NBR Gaskets
For high-volume production and complex profiles, we offer custom-moulded NBR gaskets. Calendered sheet production provides continuous lengths for strip gaskets and large-format applications. Both methods ensure consistent quality and dimensional stability.
* All configurations can be supplied with custom hardness, colour, and ACN content grades. Contact us for specific application recommendations.
ISO 9001:2015 ASTM D2000 REACH & RoHS Compliant Custom Hardness & Sizes ACN Grades: 18% – 50% Low-Temperature Options Available
Key Advantages of KXT 1700 Nitrile Rubber Gaskets
Superior Oil & Fuel Resistance – Outstanding resistance to mineral oils, greases, diesel, petrol, and lubricants, ensuring reliable sealing in fluid-contact environments.
Excellent Solvent Resistance – Performs well in contact with aliphatic hydrocarbons and many organic solvents, making it ideal for chemical and industrial applications.
High Mechanical Strength – Tensile strength ≥ 13 MPa and elongation ≥ 250% provide excellent durability and conformability to flange surfaces.
Low Compression Set – Maintains sealing force over extended periods, reducing the need for frequent re-torquing or replacement.
Wide Hardness Range – Available from 40 to 90 Shore A, allowing precise matching to your application requirements.
Custom ACN Content – Choose from 18% to 50% acrylonitrile content to balance oil resistance with low-temperature flexibility.
NBR Material Properties & Technical Data
The performance of nitrile rubber depends on its compound formulation and acrylonitrile (ACN) content. Kaxite uses premium NBR base (no regrind) to ensure consistent properties. The table below lists typical values for our standard KXT 1700 compound with medium ACN content.
| Property | Typical Value | Test Method |
|---|---|---|
| Color | Black (other colours available) | — |
| Specific Gravity | 1.30 – 1.50 g/cm³ | ASTM D297 |
| Hardness (Shore A) | 40–80 (standard 70 ± 5) | ASTM D2240 |
| Tensile Strength (MPa) | ≥ 13 (min) | ASTM D412 |
| Elongation at Break (%) | ≥ 250 (min) | ASTM D412 |
| Tear Strength (N/mm) | 35 | ASTM D624 |
| Low Temperature Resistance (°C) | -25 | ASTM D1329 |
| Max Continuous Temp. (°C) | +120 | ASTM D2000 |
| ACN Content (%) | 18–50 (customisable) | — |
* Custom hardness grades (40–90 Shore A), ACN content (18–50%), and low-temperature compounds are available upon request. Contact our technical team for material selection guidance.
= Excellent
= Good
= FairNBR vs Other Rubber Materials – Quick Comparison
| Property | NBR (Nitrile) | EPDM | FKM (Viton™) | Silicone |
|---|---|---|---|---|
| Oil & Fuel Resistance | Excellent | Poor | Excellent | Fair |
| Max Continuous Temp. (°C) | 121 | 130 | 232 | 204 |
| Ozone & Weather Resistance | Poor | Excellent | Excellent | Excellent |
| Water & Steam Resistance | Good | Excellent | Fair | Good |
| Abrasion Resistance | Good | Fair | Good | Poor |
| Cost | Low | Low | High | Moderate |
* NBR offers the best combination of oil resistance, mechanical strength, and cost-effectiveness, making it the preferred choice for automotive, petrochemical, and industrial fluid-sealing applications.
Typical Applications & Industries
Automotive & Transportation Engine gaskets, fuel system seals, transmission seals, oil pan gaskets, valve cover gaskets, fuel pump seals.
Petrochemical & Refining Flange gaskets for oil, fuel, and solvent pipelines, refinery equipment seals, tank farm gaskets.
Industrial Hydraulics Hydraulic pump and cylinder seals, hydraulic system flange gaskets, high-pressure fluid connectors.
Marine Fuel and lubricant sealing on vessels, engine room gaskets, marine fuel system seals.
General Industrial Pumps, compressors, valve bonnet gaskets, gearbox seals, industrial equipment covers.
Aerospace & Defence Fuel system seals, hydraulic system gaskets, high-performance fluid sealing components.
Why Choose Kaxite for Nitrile Rubber Gaskets?
Rubber Compounding Expertise – With decades of experience in NBR compounding and fabrication, Kaxite delivers consistent quality, accurate dimensions, and defect-free finishes.
ISO 9001:2015 Certified – Our manufacturing processes are fully certified, with strict quality controls from raw material to finished product.
Custom Engineering Capability – We manufacture NBR gaskets to any standard (inch/metric) and can accommodate non-standard shapes, hardness grades, and ACN content.
Competitive Factory-Direct Pricing – As a China rubber gasket manufacturer, we supply directly to end-users and distributors, offering significant cost advantages.
Rapid Quote & Technical Support – Our engineering team provides fast turnarounds on custom designs and material recommendations – with a response time of under 2 business hours.
Global Supply Chain – We ship to over 40 countries, with flexible packaging and shipping options to meet your project deadlines. MOQ: from 100 kg.
Proven Reliability: Kaxite NBR flange gaskets are specified by leading automotive and petrochemical companies worldwide for their exceptional oil resistance and long-term sealing performance.
Quality Assurance & Regulatory Compliance
Kaxite Sealing is an ISO 9001:2015 certified manufacturer. Our NBR flange gaskets are produced under strict process controls – from raw material compounding, calendering or moulding, to cutting and final inspection. Each gasket is inspected for dimensional accuracy, hardness, surface finish, and visual defects. We provide material test certificates (MTCs) and can supply compliance documentation upon request, ensuring full traceability from raw material to finished product.
- ISO 9001:2015
- ASTM D2000
- REACH & RoHS Compliant
- 100% Dimensional Inspection
- Full Material Traceability
- Custom ACN Content Available
Quality you can depend on – our NBR gaskets are trusted by maintenance engineers and plant managers in critical fluid-sealing applications worldwide.
Custom Manufacturing & OEM Services – Free Sample Available
As a professional NBR rubber gasket manufacturer in China, we offer complete customisation to meet your exact specifications. Request a free sample or get a bulk quote today:
- Custom sizes for any flange standard (inch / metric)
- Custom shapes: round, rectangular, square, oval, or complex profiles
- Hardness grades: 40–90 Shore A
- ACN content: 18% – 50% to balance oil resistance and low-temperature flexibility
- Production methods: die-cut, waterjet-cut, moulded, or calendered
- Private label packaging for distributors
- Just-in-time delivery and inventory management
Get a free sample or request a tailored bulk quote – our team responds within 24 hours with competitive factory pricing and lead-time estimates.
Frequently Asked Questions About Nitrile Rubber Gaskets
- Q: What is nitrile rubber and what are its main advantages?
- A: Nitrile Butadiene Rubber (NBR) is a synthetic rubber known for its exceptional resistance to oils, fuels, and solvents. Its main advantages include outstanding oil resistance, high tensile strength, good abrasion resistance, and cost-effectiveness compared to FKM/Viton™.
- Q: What is the temperature range for NBR gaskets?
- A: NBR gaskets offer continuous service from -25°C to +120°C. For low-temperature applications, we recommend selecting a higher ACN content grade. For high-temperature applications, FKM or silicone may be more suitable.
- Q: Is NBR suitable for outdoor applications?
- A: NBR has poor resistance to ozone, weathering, and UV exposure. For outdoor applications, we recommend EPDM or FKM (Viton™) instead. If NBR is required for outdoor use, consider adding a protective coating or specifying an ozone-resistant compound.
- Q: What chemicals is NBR resistant to?
- A: NBR offers excellent resistance to mineral oils, greases, diesel, petrol, hydraulic fluids, and aliphatic hydrocarbons. It has limited resistance to aromatic hydrocarbons, chlorinated solvents, strong oxidizing acids, and ozone. For chemical compatibility guidance, please consult our technical team.
- Q: What sizes and thicknesses can you manufacture?
- A: We can manufacture NBR flange gaskets to any standard or custom dimension – both inch and metric. Typical thicknesses range from 0.5 mm to 25.0 mm, with custom thicknesses available upon request. Contact us with your drawing or specification for a custom quote.
Partner with Kaxite Sealing – your trusted NBR flange rubber gasket manufacturer and supplier in China. With decades of rubber processing expertise, advanced fabrication capabilities, and a steadfast commitment to quality, we deliver sealing solutions that perform reliably in the most demanding automotive, petrochemical, and industrial applications. Request a free sample or get a tailored bulk quote today – our engineers respond within 24 hours.
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