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?
- posted
20 years ago
sealing cork float against gasoline - how to...
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- posted
20 years ago
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.
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- posted
20 years ago
Go to a local hobby store and get 'hot fuel proof clear dope"
Jerry in NC
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20 years ago
I believe that the original treatment was shellac.
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20 years ago
Orval equivocated:
That was in them old glory days when gasoline did not contain volatile additives.
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20 years ago
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
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- posted
20 years ago
I don't know if there is enough alcohol in your auto gas, but alcohol is a solvent for shellac.
Ed Sullivan
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- posted
20 years ago
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
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- posted
20 years ago
Especially alcohol, from what I read in a recent thread in this gorup.
Peter
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- posted
20 years ago
snip ...
Use two component epoxy paint (usually for coating the inside of ..... the tank) can be had at your web/local restore shop.
Eugenio