Ethylene-propylene-diene rubber has similar properties to NBR; the wear resistance and ultimate strength are lower, but EPDM has a better chemical resistance. The material is also known as ethylene-propylene rubber (EPM). EPDM exhibit better chemical resistance.
This type of rubber is used for cylinders where heat, chemicals, hot water, steam and exposure to the weather could cause problems
Typical applications are those involving certain chemicals.

Nitrile-butadiene rubber is a copolymerisation product of acrylonitrile and butadiene. It resists swelling when in contact with oils, greases and fuels. It is used accordingly – primarily in general engineering applications.

However, owing to its poor resistance NBR is the wrong choice for cylinders that come into contact with ketones and esters, or aromatic and chlorinated hydrocarbons. The technical specification is somewhat inferior to that of natural rubber. NBR can be used over a temperature range from -40 to 120°C, is relatively hardwearing, resistant to ageing and is popular as an oil- and grease-resistant rubber grade when a good grip is essential.
We can supply very soft cylinders, e.g. for coating delicate timber mouldings, etc., in a sponge rubber grade. This material is so soft that it readily adapts to many different shapes and can therefore apply an even coating.