EPDM hose is a rubber product that we often use in our lives. It is often used in engineering machinery, electronic machinery, automobiles, engines and other environments. It is often used to transport water, air, warm air and antifreeze. So the question is, can EPDM hose transport oil substances?
First of all, from the composition of EPDM
EPDM rubber is a polymer substance that is polymerized by propylene, ethylene and a very small amount of non-conjugated dienes. From the perspective of its molecular chain, the main chain of EPDM is composed of stable saturated hydrocarbons. However, its side chain contains some saturated carbon-carbon double bonds. This makes EPDM hoses have good resistance to heat, ultraviolet rays, ozone and other conditions. However, these characteristics have little effect on the oil resistance of the hose.
Then look at the polarity of the material
The memory of the rubber is judged by whether the rubber contains polar groups. Our common non-polar rubbers include natural rubber, EPDM rubber, SBR, etc. According to the principle of similar compatibility, non-polar materials and non-polar materials are compatible with each other. Gasoline, diesel, kerosene and other oils are non-polar materials, so EPDM hoses are compatible with these oils. That is to say, EPDM hoses cannot transport oil materials well.
So, in summary, EPDM hoses are not oil-resistant. If you want to choose a rubber hose with oil resistance, we can choose nitrile rubber hose. The biggest feature of this hose is that it has excellent oil resistance. In general, it can well meet our needs for hose oil resistance.