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Silicone hose resisting oil mist?
2

Silicone hose resisting oil mist?

Silicone hose resisting oil mist?

(OP)
Hi all
First post in this part of the forum, so be nice ;).
I´m about to install a silicone hose between an air filter an a turbo. My question is: will the silicone hose resist the oil mist from the crankcase ventilation that is connected before the hose?

I know that silicon hoses that are coated with oil resistant material exists, but they are hard to come by at short notice in the dimension I need. So will I be OK with an ordinary silicone hose?

RE: Silicone hose resisting oil mist?

Silicone has a good resistance to oils but a poor resistance to fuels.  Check out the likelyhood of any fuels coming into contact with the hose.  Also be aware that Silicon has a poor physical strength compared to other hose materials.

Conrad.

RE: Silicone hose resisting oil mist?

(OP)
Ok, thanks for you answer.

RE: Silicone hose resisting oil mist?

Silicone will swell in hydrocarbons, including oil. High viscosity will slow thswelling rate and temperature will increase it.

RE: Silicone hose resisting oil mist?

Silicone rubbers do not like mineral or synthetic oils, whatever the temperature.  You'd be better off with either HNBR, ACM or Vamac.

RE: Silicone hose resisting oil mist?

(OP)
Ok. Then I won´t take the chance. I have opted for an oil resistant rubber hose.

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