roydefiant

https://www.sullivanproducts.com/

SECRET AGENT

My Feedback: (18)

Well, the literature says it's compatable with diesel so Jet-A is essentially the same stuff. The real question is will it collapse under suction or not.

Zeeb

My Feedback: (41)

There's a thread on FG about it and it would seem to be made out of the same stuff as Viton. Other than that, I've not seen anyone post about actually trying the stuff as it's about $5.00 a foot which is a chunk more than Viton at McMaster-Carr.

joeflyer

My Feedback: (48)

Sullivan Proflex is FKM (fluoroelastomer), which is resistant to gas/oil/diesel/kero. However, there are a number of different classes of FKM with varying degrees of chemical and heat resistance. Sullivan does not say which class of FKM they use. It is widely used inside automotive fuel tanks, some grades of FKM hold up better than others in gasoline (which is a worse environment than kero or diesel). For our applications it's a lot better than Tygon and should last indefinitely.

FKM was invented by Dupont, and their trade name for it is Viton. Personally I use soft Viton tubing from McMaster-Carr inside the fuel tanks on all of my jets and gassers. https://www.mcmaster.com/#viton-fluoroelastomer-tubing/=15m41ws

RPTADD1213

I have used Sullivan Pro Flex fuel tubing sense it came out. About a month and a half. It is very flexible. Does not collapse under use. It stays flexible in tank and out. I tested it in a tank. I installed it in a tank and then filled it with 92 octain gas with Redline oil. It has been in the gas for about 2 months. Still flexible . Did not harden. I know. Your going to say it hasn't been out that long. Sullivan sent some test tubing to me. thats how I got it. I just ordered more from Tower Hobbies. Got it yesterday. 12 feet for approx $ 30. Will never use Tygon or Viton again. Nice to see the fuel tubing just hanging limp from the fill dot and not sticking straight out. Love it.

causeitflies

joeflyer

My Feedback: (48)

It's now available in two sizes; standard for 1/8" fittings and large for 3/16" fittings.

Proflex and Viton are both FKM material and will last indefinitely in kero or gasoline. That's the same material that is used inside automotive fuel tanks.

causeitflies

kelly vallee

ChrisPetersen

My Feedback: (3)

Springbok Flyer

I use the clear transparent fuel tubing BVM sells inside my tanks. Not sure what it is, but it works like a charm.

Cheers,

JanR