Does anyone know if any of the following are petrol resistant? e.g can they be submerged in fuel indefinately and remain stable?

PVC
Polyurethane
Nylon

Many thanks.

Steve.

I have no idea, but just out of interest - why? Why not use proper marked fuel hose?

I used some sort of plastic hose for my fuel supply when I built the car , it's been OK for 6 years or so . It is now used as a fuel return since I converted to TBs Most manufacturers use some sort of plastic for the high pressure system now

i neeed to know because it is going INSIDE the fuel tank. So will be submerged in fuel.

Thanks.

I can't remember either now and would like to find out again,

When I was last in a "Pipe Center" ages ago they had a booklet for their industrial plastic pipework range and inside it had what plastics were safe with what materials like Chlorine, petrol, etc

It might be worth popping in and asking if there's one near you,
http://www.pipecenter.co.uk/pipe/index.html

It would be useful knowledge to post up for others if you did manage to find out