EPDM vs Neoprene vs NBR Cellular Rubber
Many people wonder which type of cellular rubber is most suitable: EPDM, neoprene, or NBR. The choice is often difficult because each material has different properties for outdoor use, oil contact, or insulation. There is no single “best” option—the right choice depends entirely on the specific application. On this page, we are happy to explain more.
On this page:
Eigenschappen per materiaal
EPDM Cellular Rubber
EPDM cellular rubber is a widely chosen material for seals that must withstand long-term exposure to external influences. It stands out due to its excellent resistance to weather, ozone, and UV radiation, maintaining a long lifespan even in demanding outdoor applications. Thanks to its closed-cell structure, EPDM is highly water-repellent and retains its shape and resilience after compression. This makes it ideal for applications requiring reliable and durable sealing.
A key consideration is that EPDM is less suitable for contact with oil or fuels. For such situations, an alternative like NBR is recommended. However, EPDM performs exceptionally well in outdoor sealing applications, such as window frames, roofing, and façade constructions.
With its combination of weather resistance, flexibility, and durability, EPDM cellular rubber is a reliable solution for a wide range of sealing applications.
Neoprene Cellular Rubber
Neoprene cellular rubber, also known as CR cellular rubber, is a versatile closed-cell material, making it waterproof and resistant to liquid absorption. This makes it particularly suitable for marine and offshore applications where contact with seawater occurs.
Thanks to its good mechanical properties, flame-retardant nature, and resistance to ozone and weathering, neoprene is also widely used in industry for sealing, insulation, and vibration damping. It is easy to process and available in various forms such as sheets, rings, and self-adhesive strips, making it ideal for custom solutions.
NBR Cellular Rubber
NBR cellular rubber (nitrile butadiene rubber) is a technical elastomer that excels in applications where contact with oil, grease, or fuels is unavoidable. Its closed-cell structure makes it water- and airtight, ideal for seals in marine, automotive, and industrial sectors.
The material offers excellent resistance to mineral oils, greases, and fuels, making it suitable for prolonged exposure. Additionally, it provides good shock absorption and resilience, contributing to durability in dynamic applications.
However, NBR is less suitable for long-term outdoor use due to limited resistance to UV radiation and ozone. For applications exposed to sunlight and weathering, alternative materials are recommended.
What are EPDM, Neoprene, and NBR cellular rubber used for?
When choosing cellular rubber, it is crucial to match the material to the application. For outdoor sealing, EPDM is the ideal choice. Thanks to its excellent resistance to UV, ozone, weathering, and extreme temperatures, EPDM remains functional for a long time in outdoor environments such as façade seals, roof edges, and external piping.
When the material comes into contact with oil, fuel, or grease, NBR is the preferred solution. NBR cellular rubber offers excellent chemical resistance and mechanical properties, making it perfect for seals in engines, hydraulic systems, and transport equipment. Note that prolonged exposure to UV and sunlight can degrade the material.
For applications requiring broad, all-round functionality, neoprene cellular rubber is a good compromise. It combines reasonable chemical resistance with strong mechanical properties, making it suitable for marine, transport, and general sealing applications, where versatility is more important than extreme specialization.
What are the advantages and disadvantages?
Choosing the right cellular rubber depends on the application. For outdoor sealing, EPDM is the ideal choice due to its superior resistance to UV, ozone, weather, and extreme temperatures.
When contact with oil, fuel, or grease is involved, NBR is the preferred solution.
For applications requiring broad, all-round performance, neoprene offers
EPDM – pros and cons
Advantages
Excellent resistance to weather, UV, and ozone
Long lifespan outdoors
Flexible and resilient
Highly water-repellent
Disadvantages
Not suitable for oil, grease, or fuels
Less chemically resistant than neoprene and NBR
Neoprene – pros and cons
Advantages
Strong all-round performance
Moderate resistance to oil and grease
Good weather and flame-retardant properties
Suitable for versatile applications
Disadvantages
Less UV-resistant than EPDM
Often more expensive
Less resistant to fuels than NBR
NBR – pros and cons
Excellent resistance to oil, grease, and fuels
Strong mechanical properties
Airtight and watertight
Ideal for industrial and automotive applications
Disadvantages
Limited UV and ozone resistance
Less suitable for outdoor use
Ages faster under sunlight
What alternatives are available on the market?
In addition to EPDM, NBR, and neoprene, there are various other types of rubber that can be used for specific applications.
NR cellular rubber (natural rubber) is flexible and resilient but less durable when exposed to UV and weathering over long periods. It is mainly used for indoor sealing and dynamic applications.
Silicone rubber stands out due to its high temperature resistance and chemical inertness, meaning it hardly reacts with food products or chemicals. This makes it highly suitable for food applications, medical equipment, and situations where hygiene and heat resistance are essential.
Butyl rubber is exceptionally airtight and acts as an excellent gas barrier, allowing very little gas to pass through. As a result, it is used in specialized sealing applications such as medical devices, tires, or industrial systems where minimal permeability is critical.
Conclusion
EPDM, neoprene, and NBR cellular rubber each have their own strengths, depending on the application. EPDM excels in outdoor environments thanks to its excellent resistance to weather, UV, and ozone, making it ideal for long-term outdoor applications such as façade seals and roof edges.
NBR is the specialist for contact with oil, grease, and fuels, making it perfect for engines, hydraulic systems, and industrial seals, but less suitable for prolonged outdoor use.
Neoprene offers a versatile compromise: reasonable chemical resistance combined with good mechanical properties, making it widely applicable in marine, transport, and general sealing applications.
In addition to these standard materials, there are also alternatives such as NR, silicone, and butyl rubber, which are suitable for specific requirements such as high temperatures, food contact, or airtightness.
Frequently asked questions
Receiving advice on EPDM vs Neoprene vs NBR Cellular Rubber?
Do you have questions about EPDM vs Neoprene vs NBR Cellular Rubber or their application for your business? Please let us know using the form below. Our team of specialists will be happy to think along with you.
