7 differences between EPDM and HNBR rubber sheets.

Both EPDM and HNBR rubber sheets are widely used in the industry for applications such as seals, gaskets, pads, etc. Here are the similarities and differences between EPDM and HNBR rubber sheets.

1. Heat Resistance
- Both EPDM and HNBR rubber sheets offer similar heat resistance. EPDM can withstand temperatures up to +160°C.
- HNBR can endure up to +165°C.

2. Environmental Resistance
- Both types of rubber sheets have few double bonds in their structure, making them resistant to UV rays, ozone, sunlight, and oxygen to a comparable degree.

3. Oil Resistance
- EPDM rubber sheets are not resistant to petroleum oils, fuel oils, and crude oil.
- HNBR with its nitrile groups (-CN), exhibits excellent oil resistance.

4. Chemical Resistance
- EPDM rubber sheets excel in resisting chemicals, including acids, alkalis, and polar solvents, suitable for medium concentration chemical applications.
- HNBR has lesser chemical resistance compared to EPDM.

5. Mechanical Properties
- HNBR rubber sheets possess superior mechanical properties, strength, and abrasion resistance compared to EPDM.

6. Cost
- EPDM rubber sheets are more economical, widely available, and offer greater variety.
- HNBR rubber sheets are specialized, produced for specific applications, such as oil drilling, and are more expensive.

7. Applications
- EPDM is preferred for chemical resistance, outdoor applications, or general purposes.
- HNBR is designed for special applications requiring oil and heat resistance.

Choosing the right type of rubber sheet should consider the application, cost, and long-term durability.

For more information on selecting EPDM rubber sheets or chemical-resistant rubber, you can inquire further or place an order with HyperSheet.

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