sealing cork float against gasoline - how to...

Got a pair of fuel-level senders and the cork floats have lost some of
whatever it was that was painted on them. These will be in tanks with
automotive gasoline. What should I use to seal them?

"jt" wrote in message
...
Got a pair of fuel-level senders and the cork floats have lost some of
whatever it was that was painted on them. These will be in tanks with
automotive gasoline. What should I use to seal them?



Somebody recommended Ambroid in a mailgroup recently. I can't attest to it
for myself, having long ago given up on cork and gone to a brass float.

Go to a local hobby store and get 'hot fuel proof clear dope"

Jerry in NC

"jt" wrote in message
...
Got a pair of fuel-level senders and the cork floats have lost some of
whatever it was that was painted on them. These will be in tanks with
automotive gasoline. What should I use to seal them?

In article ,
"Jerry" wrote:

Go to a local hobby store and get 'hot fuel proof clear dope"

Jerry in NC

"jt" wrote in message
...
Got a pair of fuel-level senders and the cork floats have lost some of
whatever it was that was painted on them. These will be in tanks with
automotive gasoline. What should I use to seal them?




I believe that the original treatment was shellac.

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Orval equivocated:

I believe that the original treatment was shellac.



That was in them old glory days when gasoline did not contain volatile
additives.

I've had good luck with polyester fiberglass resin. This is on floats used
with
a wire sticking up to see fuel level.
I have dipped them in resin and then shook off the excess. They don't
seem to float any lower and the resin resists auto fuel.

Cheers:

Paul
NC2273H


Got a pair of fuel-level senders and the cork floats have lost some of
whatever it was that was painted on them. These will be in tanks with
automotive gasoline. What should I use to seal them?

Orval Fairbairn wrote in message ...
In article ,
"Jerry" wrote:

Go to a local hobby store and get 'hot fuel proof clear dope"

Jerry in NC

"jt" wrote in message
...
Got a pair of fuel-level senders and the cork floats have lost some of
whatever it was that was painted on them. These will be in tanks with
automotive gasoline. What should I use to seal them?




I believe that the original treatment was shellac.

I don't know if there is enough alcohol in your auto gas, but alcohol
is a solvent for shellac.

Ed Sullivan

On 14 Jul 2003 12:08:54 -0700, (Ed Sullivan) wrote:

Orval Fairbairn wrote in message ...
In article ,
"Jerry" wrote:

Go to a local hobby store and get 'hot fuel proof clear dope"

Jerry in NC

"jt" wrote in message
...
Got a pair of fuel-level senders and the cork floats have lost some of
whatever it was that was painted on them. These will be in tanks with
automotive gasoline. What should I use to seal them?




I believe that the original treatment was shellac.

I don't know if there is enough alcohol in your auto gas, but alcohol
is a solvent for shellac.

Ed Sullivan


Ed,

I have used "Indian Head" gasket shellac with good results in the
past. Whatever sealant is used, it should be tested prior to
installation on the airplane. Buy a bottle of decent wine and drink
it. When the cork is dry (yes, you must buy a wine with a real cork
in the bottle) coat it with the sealant to be considered and submerge
it, after curing, in the fuel to be used and watch it for a week or
more before deciding.

O-ring

Veeduber wrote in message . If you use it on a riveted
aluminum tank, it works best if the tank is first etched with a mild
solution
of phosphoric acid

I have a steel tank that leaves a bit of rust in the filter. Will sloshing
the tank solve the rust problem? If so, what compound do you recommend for
steel and should it be etched with anything beforehand?

D.

On 15 Jul 2003 05:54 PM, Capt. Doug posted the following:

I have a steel tank that leaves a bit of rust in the filter. Will
sloshing the tank solve the rust problem? If so, what compound do you
recommend for steel and should it be etched with anything beforehand?

Try this:

http://www.eastwoodco.com/aspfiles/i...3071523462854&
T1=10165+Z&Dep_Key1=

I used a similar product to etch/seal the tank for my three wheeler (atv)
and have been very happy with the results.

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