EPDM Flange Rubber Gaskets
Model:KXT 1700
EPDM Flange 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.
EPDM Flange Rubber Gaskets – KXT 1700
Kaxite Sealing, a trusted China rubber gasket manufacturer, presents the KXT 1700 EPDM Flange Rubber Gasket – a versatile, high-performance sealing solution engineered for applications where exceptional weather resistance, ozone stability, and long-term durability are essential. EPDM (Ethylene Propylene Diene Monomer) is a premium synthetic rubber material that delivers outstanding resistance to environmental factors, making it the preferred choice for outdoor, marine, and industrial sealing applications.
Why KXT 1700? EPDM rubber offers excellent resistance to weathering, ozone, UV radiation, and water, maintaining its physical properties across a wide temperature range (-50°C to +140°C). Unlike many other elastomers, EPDM will not crack or degrade when exposed to prolonged sunlight, rain, or atmospheric ozone. This makes it ideal for flange connections, pipe joints, and equipment covers in demanding outdoor and water-based environments.
As a leading EPDM gasket supplier in China, Kaxite offers the KXT 1700 in a wide 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)-50°C to +140°C
Intermittent Temp.Up to +150°C
Hardness (Shore A)40–80 (standard 70 ± 5)
Tensile Strength≥ 8 MPa
Weather ResistanceUV / Ozone / Water
ComplianceASTM D2000, REACH, RoHS
Why KXT 1700 EPDM Flange Rubber Gasket?
- ✅ Exceptional Weather & Ozone Resistance – Completely UV stabilised, will not crack in sunlight
- ✅ Excellent Water & Steam Resistance – Suitable for fresh water, seawater, and hot water systems
- ✅ Wide Temperature Range – Continuous service from -50°C to +140°C
- ✅ Good Chemical Compatibility – Resists acids, alkalis, alcohols, and detergents
- ✅ 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 EPDM flange rubber gaskets in multiple configurations to suit different installation needs and sealing challenges. All types are manufactured from high-quality EPDM compound with full traceability.
Die-Cut EPDM Gaskets
Precision cut from EPDM rubber sheets using high-quality dies, offering cost-effective production for standard shapes and sizes. Ideal for general flange sealing, pipe joints, and equipment covers. Available in thicknesses from 0.5 mm to 25.0 mm.
Waterjet-Cut EPDM 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 EPDM Gaskets
For high-volume production and complex profiles, we offer custom-moulded EPDM 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 FDA‑compliant grades. Contact us for specific application recommendations.
ISO 9001:2015 ASTM D2000 REACH & RoHS Compliant FDA Grade (on request) WRAS Approved (select grades) Custom Hardness & Sizes
Key Advantages of KXT 1700 EPDM Flange Gaskets
Superior Weather Resistance – Completely UV stabilised and highly resistant to ozone and extreme weather, ensuring long-term outdoor durability without cracking or degradation.
Excellent Water & Steam Performance – Will not swell or deteriorate in fresh water, seawater, or hot water up to +140°C, making it ideal for water treatment and marine applications.
Broad Chemical Compatibility – Good resistance to diluted acids, alkalis, alcohols, detergents, and ketones. (Note: limited resistance to petroleum oils and fuels.)
Wide Temperature Range – Maintains flexibility and sealing performance from -50°C to +140°C, suitable for both cold and hot environments.
Excellent Flexibility & Resilience – Elongation at break ≥250% provides excellent conformability to flange surfaces, ensuring a reliable seal even on irregular flanges.
Food & Drinking Water Compliance – FDA-compliant and WRAS-approved grades available for food processing and potable water applications.
EPDM Material Properties & Technical Data
The performance of EPDM rubber depends on its compound formulation. Kaxite uses premium EPDM base (no regrind) to ensure consistent properties. The table below lists typical values for our standard KXT 1700 compound.
| Property | Typical Value | Test Method |
|---|---|---|
| Color | Black (other colours available) | — |
| Specific Gravity | 1.1–1.4 g/cm³ | ASTM D297 |
| Hardness (Shore A) | 40–80 (standard 70 ± 5) | ASTM D2240 |
| Tensile Strength (MPa) | ≥ 8 (min) | ASTM D412 |
| Elongation at Break (%) | ≥ 250 (min) | ASTM D412 |
| Tear Strength (N/mm) | 26 | ASTM D624 |
| Low Temperature Resistance (°C) | -50 (static) | ASTM D1329 |
| Max Continuous Temp. (°C) | +130 to +140 | ASTM D2000 |
| Intermittent Max Temp. (°C) | +150 | — |
* Custom hardness grades (40–90 Shore A), FDA-compliant, and WRAS-approved compounds are available upon request. Contact our technical team for material selection guidance.
EPDM vs Other Rubber Materials – Quick Comparison
| Property | EPDM | Nitrile (NBR) | FKM (Viton™) | Silicone |
|---|---|---|---|---|
| Max Continuous Temp. (°C) | 130 | 121 | 232 | 204 |
| Ozone & Weather Resistance | Excellent | Poor | Excellent | Excellent |
| Oil & Fuel Resistance | Poor | Good | Excellent | Fair |
| Water & Steam Resistance | Excellent | Good | Fair | Good |
| Acid & Alkali Resistance | Good | Fair | Excellent | Good |
| Cost | Low | Low | High | Moderate |
* EPDM offers the best combination of weather resistance, water resistance, and cost-effectiveness, making it the preferred choice for outdoor and water-based applications.
Typical Applications & Industries
Outdoor & Infrastructure Rooftop pipe flange seals, exposed flange connections, weather stripping for outdoor equipment, railway seals.
Marine & Water Treatment Underwater sealing, fresh/seawater pipe flanges, water treatment plant equipment, desalination plants, shipbuilding.
Plumbing & HVAC Drinking water pipe gaskets (WRAS/FDA grades), hot water system flanges, heating/cooling system seals, air conditioning gaskets.
Automotive Weather stripping, door seals, radiator and cooling system hoses, grommets, vibration dampeners, exposed underbody seals.
Industrial Manufacturing Chemical processing (diluted acids/alkalis), food & beverage processing (FDA grades), pharmaceutical manufacturing, general industrial maintenance.
Power Generation Cooling tower seals, transformer gaskets, outdoor switchgear sealing, hydroelectric power plant seals.
Why Choose Kaxite for EPDM Flange Rubber Gaskets?
Rubber Processing Expertise – With decades of experience in rubber 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, including hardness and dimensional inspection.
Custom Engineering Capability – We manufacture EPDM gaskets to any standard (inch/metric) and can accommodate non‑standard shapes, hardness grades, and sizes.
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 EPDM flange gaskets are specified by leading engineering and infrastructure companies worldwide for their exceptional performance in outdoor and water-based environments.
Quality Assurance & Regulatory Compliance
Kaxite Sealing is an ISO 9001:2015 certified manufacturer. Our EPDM 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 FDA compliance documentation and WRAS approval certificates upon request, ensuring full traceability from raw material to finished product.
- ISO 9001:2015
- ASTM D2000
- REACH & RoHS Compliant
- FDA 21 CFR (select grades)
- WRAS Approved (select grades)
- 100% Dimensional Inspection
- Full Material Traceability
Quality you can depend on – our EPDM gaskets are trusted by maintenance engineers and plant managers in critical service applications worldwide.
Custom Manufacturing & OEM Services – Free Sample Available
As a professional EPDM 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
- Production methods: die-cut, waterjet-cut, moulded, or calendered
- FDA-compliant and WRAS-approved compounds on request
- 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 EPDM Flange Rubber Gaskets
- Q: What is EPDM rubber and what are its main advantages?
- A: EPDM (Ethylene Propylene Diene Monomer) is a synthetic rubber known for its exceptional resistance to weathering, ozone, UV radiation, and water. Its main advantages include excellent outdoor durability, resistance to temperature extremes (-50°C to +140°C), good chemical resistance, and cost‑effectiveness compared to FKM/Viton™.
- Q: Is EPDM suitable for outdoor applications?
- A: Yes, EPDM is one of the best materials for outdoor applications. It is completely UV stabilised and highly resistant to ozone and extreme weather conditions. Unlike many other rubbers, EPDM will not crack or degrade when exposed to prolonged sunlight, rain, or atmospheric pollutants.
- Q: Is EPDM suitable for drinking water and food contact?
- A: Yes, we offer FDA-compliant and WRAS-approved EPDM grades that are suitable for drinking water and food processing applications. Please specify your requirement when ordering to ensure the correct grade is supplied.
- Q: What chemicals is EPDM resistant to?
- A: EPDM offers excellent resistance to water (including seawater), steam, diluted acids and alkalis, alcohols, ketones, detergents, and ozone. It has limited resistance to petroleum oils, fuels, and aromatic hydrocarbons. For oil‑resistant applications, NBR or FKM (Viton™) is recommended.
- Q: What sizes and thicknesses can you manufacture?
- A: We can manufacture EPDM 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 EPDM 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 outdoor, marine, and industrial applications. Request a free sample or get a tailored bulk quote today – our engineers respond within 24 hours.
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No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
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