Joe,
The fumes are the only real reason. When I built my fuel tank, the garage I was
building it in was right below my bedroom. My wife was not pleased with the
smell, and I didn't like it my either. It was a couple days before we could
breath again. I am convinced West System will work with non-ethanol fuel
because it is what I used to seal the edges and seams when it started leaking
and has never leaked since. Luckily, I've pretty much manged to stay away from
ethanol, but have heard enough horror story's form others to get the the point.
Thanks,
Rob
-----Original Message-----
From: n357cj <n357cj at ptd.net>
To: Robert7721 <robert7721 at aol.com>
Cc: krnet <krnet at list.krnet.org>
Sent: Mon, Feb 22, 2016 6:10 am
Subject: Re: KR> fuel tank glassing
Rob,
Is the only reason that you would not use the Vinyl ester because of the fumes?
I have tanks in 357cj made of both vinyl ester and saf-t-poxy (I think I
recall) The wing tanks are the vinyl ester and never been a problem with any
and all types of fuel. But the header tank that I got from Rand Robinson was
made with saf-t-poxy that is supposed to be for fuel. The first time I had to
use auto fuel with ethanol it eroded the epoxy of the interior of the tank to
the point that there was a coating through the entire intake system. I only
discovered it before an accident because the aerocarb slide was sticking. I had
to cut open the header tank and re-coat the entire interior. (you could
actually see where the fuel level had been while the ethanol fuel was in the
tank) The intake system was dismantled and cleaned. The combustion chambers
appeared to be OK as it probably burned the resin up. The fuel was only in the
tank for about 5 days before being used up and replenished with av-gas. The
fuel that did the damage was 5 gal of Sunoco 93 oct. which was the only thing
that i could get at the end of the day on a Sunday on the way home from the
Tennessee gathering.
I do not know if the west system would hold up to fuels although it has not
harmed the skins of 357cj in any way that I am aware of.
The header tank I am making now is being made from a solid block of foam shaped
to the configuration that fits under the foreword deck. That is why I am not
using the 1/4" last-o-foam as the shape is not conducive to flat sides. The
flat sided type of construction is what I did use on the wing tanks of 357CJ.
14 years ago.
Joe Horton
----- Original Message -----
From: "Robert7721" <robert7721 at aol.com>
To: krnet at list.krnet.org
Cc: n357cj at ptd.net
Sent: Sunday, February 21, 2016 4:35:23 PM
Subject: Re: KR> fuel tank glassing
Joe,
That is pretty close to what I did, see my details at web site;
http://www.robert7721.com/fuel_tank.html
1/4" Lastofoam. Two layers on the inside, one on the outside. I did not do the
deck cloth on the inside, but I did squeegee in a batch of resin into the weeve
after the two inside layers were dry. It seemed to work fine. Only issue I had
was the bottom not sealing quite right. I did have to pour some epoxy into it
later to seal the edges/corners.
I would not use vinyl ester again. I'm sure the West System would do just fine.
You never want to put fuel with ethanol in it, regardless of construction.
Thanks,
Rob Schmitt
Kansas City
-----Original Message-----
From: n357cj via KRnet <krnet at list.krnet.org>
To: KRnet <krnet at list.krnet.org>
Cc: n357cj <n357cj at ptd.net>
Sent: Sun, Feb 21, 2016 12:34 pm
Subject: KR> fuel tank glassing
Hey guys,
Getting ready to glass the header tank that I am building from scratch. Since I
bought the one that is in N357CJ I really did not think about how many layers
of glass there might be in the construction. Right now I have 2 full layers of
the 5 oz glass cut and one layer of the deck cloth on the interior of the
layers. I am making it in a top and bottom half so I could always add layers
inside or out before I close it up but I would like to be close in the first
lay up. What are the opinions of the total layers of glass needed? BTW- now
foam core just planning on glass/resin only.
Thanks,
Joe Horton
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