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EPDM, the durable elastomer for multiple applications

About EPDM
EPDM (ethylene-propylene-diene monomer) is a synthetic elastomer known for its exceptional performance. Its unique composition provides remarkable weather resistance, excellent elasticity, and superior durability. These properties make it a preferred material for various industrial and commercial applications, particularly in sectors where exposure to the elements is frequent.
Discover our expertise in EPDM machining
At 3D Coupe, we excel in EPDM machining to meet the specific needs of your industry. Our collaborative approach and technical know-how ensure precise and high-performance solutions. Contact us to discuss your project!
Characteristics of EPDM
Mechanical Performance
- Tensile strength: EPDM exhibits a breaking strength ranging between 13 and 25 MPa.
- Exceptional elasticity: With an elongation at break of up to 700%, EPDM offers remarkable flexibility!
- Compression resistance: It retains its properties even after prolonged compression, ensuring the long-term sealing of joints.
Thermal Performance
- High temperature resistance: EPDM retains its elastic properties up to 150°C, making it suitable for high-temperature environments.
- Low temperature performance: It maintains its flexibility down to -40°C, ensuring reliable performance in extreme weather conditions.
- Dimensional stability: Minimal thermal expansion, ensuring dimensional integrity regardless of temperature.
Chemical Performance
- Resistance to atmospheric agents: EPDM offers exceptional protection against ozone, UV, and harsh weather, making it ideal for outdoor applications.
- Selective chemical resistance: Excellent resistance to ketones, diluted acids, and alkalis.
- Limited compatibility: It is important to note that EPDM is sensitive to mineral oils, fuels, and halogenated solvents.
Practicality
- Electrical insulation: EPDM has excellent insulating properties, making it ideal for applications requiring reliable electrical insulation.
- Exceptional durability: Its resistance to weather gives it remarkable longevity, reducing maintenance and replacement costs.
- Ease of processing: It can be machined, molded, and extruded using various methods.
Uses of EPDM
EPDM is used in many sectors thanks to its versatility. In the automotive industry, it is found in sealing joints, hoses, and belts, where its resistance to variable temperatures and chemicals is essential. In construction, it is favored for roofing membranes and expansion joints for durable protection against weather. HVAC systems also use it for insulation and sealing, ensuring efficiency and longevity.
FAQ and Comparisons
What is the difference between EPDM and neoprene?
Both EPDM and neoprene are synthetic elastomers, but they differ in chemical composition and properties. EPDM offers better resistance to weather, ozone, and UV, making it ideal for outdoor applications. In contrast, neoprene has better resistance to oils and hydrocarbons, making it more suitable for environments exposed to these substances.
Is EPDM compatible with oils and fuels?
No, EPDM is generally incompatible with mineral oils, fuels, and halogenated solvents, which limits its use in environments where these substances are present.
Can EPDM be used for roofing sealing applications?
Yes, EPDM is commonly used as a roofing membrane due to its durability, weather resistance, and ability to maintain its elastic properties over a wide range of temperatures.
What is the typical lifespan of EPDM in outdoor use?
Due to its exceptional resistance to UV, ozone, and weather conditions, EPDM can last for several decades in outdoor use without significant degradation.
How does EPDM compare to silicone in terms of thermal resistance?
Silicone can typically withstand higher temperatures than EPDM, making it more suitable for applications requiring superior thermal resistance. However, EPDM offers better resistance to weather and chemicals such as ketones and alkalis.
Is EPDM recyclable?
Yes, EPDM is recyclable, although recycling processes are still under development to optimize the recovery of this material.
3D Coupe, your EPDM machining expert
Our expertise in EPDM cutting and machining enables us to create customized solutions that meet your specific needs. For durable sealing joints or weather-resistant components, trust our know-how. Contact us to discuss your project!

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