What do you guys use for fitting sealant for the fittings in the fuel tank? The manual says it should be gasoline imperious.
What do you guys use for fitting sealant for the fittings in the fuel tank? The manual says it should be gasoline imperious.
Paul
Building STi
Rotax 915is
MT Prop
Oratex
N951CT
EZ turn sealant. Good stuff. Aircraft Spruce.
ezturnlube.jpg
"Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive." Ernie Pyle
Brett Butler
Flying: N46KF, 1998 Model 5 Outback, 912ul 110hp, G3x with 2 axis a/p, Beringer wheels & brakes, SS7 firewall forward, NR prop, Custom paint
Hi Brett,
Have you used this successfully (for an extended period of time) on tapered pipe threads in a fiberglass structure? There are conflicting opinions and experience with this product, which is equivalent to Fuel Lube, and many people claim that it is all they ever use on fuel fittings. It was originally designed for use with plug valves, as a lubricant. They also recommend it's use with gaskets. It is a lubricant, and good for that purpose, but is not a "sealant" in the conventional sense. It definitely shouldn't be used on tapered pipe threads in high pressure applications, which our fuel systems aren't of course. Brake fittings would be an example. The threads in our fiberglass fuel tanks can be relatively non-precision and a little crude. Something that cures and has some "filler", as well as lubricating properties would seem to be a surer bet. I'm just curious about your experiences with it.
John Evens
Arvada, CO
Kitfox SS7 N27JE
EAA Lifetime
Chap. 43 honorary Lifetime
Would you believe that the original product (blue stuff) that the build manual suggests for the brake fittings did not work for me but this EZ lube is. I will admit that at first it started off failing just like the Permatex product but after several days it dried up and is still working on my brake fittings now for a year.
Eddie Forward
Flying
SS7, 912iS, Garmin G3X
Appreciate the question John. I was an owner of a boat maintenace business in San Diego after I retired from the USN. I stumbled onto this product while in the boatyard. A seasoned mechanic said I should use it and have used this product ever sense on all my npt fuel fittings on steel, aluminum, and fiberglass tanks. Usually with brass or stainless fittings. Always did the job.
As my plane is NOT yet flying, I have ZERO experience with it on an airplane!
I never have used it like Eddie has on brake pressure fittings. Nice to know that it worked!
Disclaimer - Jmho and it worked well for me in the past. I have no interest in the product other than that.
With luck this thread will not turn into what's the best to "oil" use, lol.
"Somebody said that carrier pilots were the best in the world, and they must be or there wouldn't be any of them left alive." Ernie Pyle
Brett Butler
Flying: N46KF, 1998 Model 5 Outback, 912ul 110hp, G3x with 2 axis a/p, Beringer wheels & brakes, SS7 firewall forward, NR prop, Custom paint
I have this, but:
IMG_5656.jpg
I am questioning because the build manual states that it should be fuel impervious rather than just resistant. Can't find a fuel "impervious" sealant online. Do any of you use this?
Last edited by captainphx; 05-08-2020 at 10:05 AM.
Paul
Building STi
Rotax 915is
MT Prop
Oratex
N951CT
Paul, that is what Kitfox recommends and I believe they use it on their factory built SLSA's. I still use the old Loctite 9AR; It has worked perfectly for me on all NPT fittings, fuel, oil, and brake, in steel, aluminum and fiberglass for 7 years now without a leak. Just my experience.
Jim Ott
Portland, OR
Kitfox SS7 flying
Rotax 912ULS
Thanks Jim. Yes I have that too. Glad to know that's what works.
Paul
Building STi
Rotax 915is
MT Prop
Oratex
N951CT
That's what I used on the tanks also, although it (the 9AR) isn't available anymore... anybody know if there is a direct equivalent available from Loctite?
John Evens
Arvada, CO
Kitfox SS7 N27JE
EAA Lifetime
Chap. 43 honorary Lifetime