What is an EPDM rubber gasket?
The main function of an EPDM rubber gasket is to fill the space between two or more surfaces in order to adequately prevent any seepage from or into objects. EPDM rubber gaskets are also used to fill irregularities or gaps between machine parts in order to increase the lifespan of machinery. EPDM gaskets are well-known for their excellent weathering resistance. Coupled with outstanding UV and ozone resistance properties and the ability to withstand high temperatures, EPDM (Ethylene Propylene Diene Monomer) has excellent weathering properties and is therefore ideal for use outdoors, where it will be exposed to the elements.
EPDM gasket specification
EPDM gaskets are available in a medium to high volume quantity and can be offered in WRAS approved grades, so that the gaskets are suitable for use with potable water. Some of the characteristics that make EPDM rubber gaskets such a multi-purpose and versatile gasket material include:
- Excellent resistance to ozone, sunlight, aging, severe weather conditions, oxygen, acids, alkalis, oils, grease, ketones and ethanol
- Outstanding colour stability
- Odour-free characteristics
- High temperature resistance
- Insulating qualities
EPDM gaskets temperature rating
EPDM gaskets are recognised for their particularly high temperature rating. This level of tolerance makes EPDM rubber gaskets the ideal choice when it comes to environments in which temperatures may exceed 100°C. In fact, with EPDM gaskets, much higher temperature ratings are achievable with a specially formulated compound, so if your specific project requires a durable gasket that can withstand such high temperatures, an EPDM gasket may be the ideal rubber gasket for you.
EPDM gasket chemical resistance
Due to the high chemical resistance of an EPDM gasket, it is often recommended for use in environments whereby the following media are likely to be present:
- Phosphate ester based hydraulic fluids
- Steam and water
- Silicone oils and greases
- Dilute acids and alkalis
Although an EPDM gasket’s chemical resistance is very high, we would advise against using EPDM rubber gaskets with certain media, such as petroleum oils, and would recommend using alternative gasket materials, like nitrile gaskets, which work particularly well in such applications.
EPDM rubber gasket applications
Given that EPDM rubber gaskets are resistant to water, ageing and ozone, they are ideal for use in a number of exposed and exterior applications. EPDM rubber gaskets are often accepted as being a great all-round, general-purpose gasket and for this reason, it can be found in many medium-range applications, such as:
- Low pressure pipe seals
- Weather strips in outdoor applications
- Man way gasket
Why purchase from an established EPDM gasket manufacturer?
Martin’s Rubber can custom manufacture your ideal EPDM rubber gasket for your project. Our tried and tested manufacturing techniques mean that you can rely on us to deliver your EPDM rubber gaskets on time, within budget and precisely to your exact specification. For additional information or advice on finding the right gasket for your product requirements, simply speak to one of our technical experts on 023 8022 6330, or alternatively email us.
For further information on our range of EPDM rubber gaskets, please read through our EPDM rubber gasket datasheets:
Availability of EPDM rubber gaskets
- EPDM temperature rating: -30 to +100°C (much higher temperatures are achievable with a specially formulated compound)
- Shore hardness of EPDM rubber gaskets: 70° ± 5°
- EPDM gasket colour: Black
- Thicknesses of EPDM rubber gaskets (stocked): 1.5mm, 2mm, 3mm
- Thicknesses of EPDM gaskets (non-stock): 0.75mm, 1mm, 2.5mm, 4mm, 5mm, 6mm, 12mm