What is mail-order fuel hose made from?

[Rema1000]

I'm looking at the fuel hoses at:

http://www.chaparral-racing.com/Chaparral/dept.asp?dept_id=3810&Gift=false&GiftID=

MrCycles has similar choices.  I had some Helix hose, but I think it was PVC, which I had to replace (I can't use PVC, nor polyurethane for more than a year).

I can use Buna-N, Neoprene, Silicone,  Teflon, HDPE/polyethylene, and Viton (in about that order).  Neoprene is the easiest to find, but it's thick stuff, and a pain to work with at the tank fitting.  I used to see lots of Teflon/Viton on eBay, but not this year.

[starwalt]

I'd try the local chain stores first. They usually have an assortment. I would have to read the material listing on the tube.

Industrial supply houses also might help with your quest.

Why can't you use PVC, etc? Allergies/medical reason?

[coll0412]

He runs E-85 so I think that is why...