Fuel tank sealers - which to use?

Greg Barron

New Member
I've found five:
http://www.eastwoodco.com/shopping/p...Ctank%2Csealer
Eastwood's product

http://www.4secondsflat.com/Fuel_Tank_Sealer.html
Red Kote's product

http://www.kbs-coatings.com/Tank-Sealers_c_7-1-0.html
KBS's Product

http://www.imperialrestoration.com/f...ank_sealer.php
POR-15's product

http://www.caswellplating.com/aids/epoxygas.htm
Caswell's product

Does anyone have any experience or knowledge of any of these products? I'm needing to seal a FI tank for my turbo project.

Any thoughts or ideas are appreciated.

Thanx,
Greg
 
I hate to add to your choices, but...

I sealed my X1/9's fuel tank with this:

http://www.por15.com/prodinfo.asp?grp=FTRK&dept=12


and it worked great. This is a fairly dirty job (invest in long rubber gloves) but it worked great. I just took delivery of a Fiat 850 (today in fact) and plan on sealing my tank with this again for the Spider.

I do recommend POR-15 as a fuel tank restoration system
 
Why do you want to seal the tank?

First off just remember that the pick up tube on a F/I tank is at the bottom of the tank. It also has a fine mesh sock on it at the bottom of the tank. So I will guess that the sealer will obstruct the sock and leave the tank now useless as little to no fuel will flow.

I repaired a F/I tank last year that had pin holes at the area where the bands that hold the tank in the car created a wet spot for rust to form. I removed the tank, purged until dry and then cleaned and welded in a patch. Tested for leaks with 1 PSI of compressed air and soap and water. All is well a year latter. I have been welding patches on tanks for 20 years and the tank once done has never failed.

TonyK

Grimsby Ont. Canada.
 
It's rusty inside

Tony,
I was thinking that I should seal the tank as there is a bit of rust inside. I'm not sure if there are any pinholes or not. My plan was to remove the mesh screen that is in the bottom of the tank and replace with an inline filter.
Should I just plan on some muriatic acid and chain links to remove the rust and then not worry about sealing?
Thanx,
Greg
 
I had a question about rust in the tank. I was wondering if there is a way to fix it without removal. My car has set for a few years with almost no fuel in the tank. I assume there will be rust, but have not checked. Any suggestions?
-Frank
 
Well as long as...

You are prepared to remove the sock then install a filter after the tank you should be okay. I would stay away from the acid as it may make a lot of pin holes in the tank that will need a sealer that will fill them. Make sure you pressure test the tank afterward. I use fantasic cleaner as a soap to detect leaks, it works very well.

TonyK
Grimsby Ontario Canada.
 
There will be more than rust in that tank.

It will be filled with a white chalk on the inside and the fuel will be gummy. I would remove the tank and flush it with solvent, let dry and see what is left.

TonyK.

Grimsby Ont. Canada.
 
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