[Shop-talk] Sealants for nylon gas tank?

[Jim Franklin]

A friend sent me the link to the BMW upgrade kit, which includes a tube of
Gasoila. I found a jar at my local Tractor Supply for $8. Specifically states
compatibility with nylon, up to 20% ethanol gasoline, and steel. Probably very
similar to what you're talking about:

http://www.gasoila.com/products/pipe-thread-sealants/gasoila-soft-set-thread-
sealant-with-ptfe.html/

jim

On May 4, 2015, at 9:48 AM, Pat Horne <pat at hornesystemstx.com> wrote:

> Call Rectorseal's customer support and see what they have to say about
their
> products that you already have on hand. I don't have any handy to check,
but
> see if you can find a tube of Teflon pipe dope. The stuff I used about 10
> years ago was for nylon. I was using water so didn't check for other fluid
> types. You could also contact Locktite, they should be able to tell you.
>
> Peace,
> Pat
>
> -----Original Message-----
> <snip>
> I need to install new stainless steel quick disconnect fuel taps in a nylon
> gas tank. People have told me to use a lubricating sealant, since the
insert
> in the tank will tear out before the threads (1/4 NPT) will seal. I tried
> pink teflon tape and I got it tight as I dared and it still leaked. These
> are 90 taps so I have to tighten them in 360 degree increments.
>
> I have 2 jars of sealant, that either say they're ok with nylon, or with
> gasoline, but none say both. Any ideas if any of the following will be ok?
>
> Rectorseal T plus 2 - "Recommended for use on threaded galvanized steel,
> iron, brass, copper, aluminum, stainless steel, polyethylene, fiberglass
> reinforced, PVC, CPVC, and ABS pipe."
>
> Rectorseal 5 - "ideal for application with a wide variety of fluids and
> gases"
> and "Recommended for use on threaded galvanized steel, iron, brass, copper,
> aluminum, stainless steel, polyethylene, fiberglass reinforced and PVC
> pipe.Not recommended for use with ABS,CPVC pipe or oxygen, chlorine and
> other oxidizers"