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[Healeys] Fw: Gas / fuel tank sealant

To: "Healey List" <healeys@autox.team.net>
Subject: [Healeys] Fw: Gas / fuel tank sealant
From: "Mirek Sharp" <m.g.sharp@sympatico.ca>
Date: Sun, 31 May 2009 17:41:26 -0400
Subject: Re: [Healeys] Gas / fuel tank sealant


> Kees wrote: "Most if not of the rust can be removed that way."
>
> .. or use a 15% solution of phosphoric acid.  I buy this locally from a 
> lab suppliers and use it a lot for de-rusting parts where cleanliness is 
> paramount - fuel tanks included.  However, the bare metal will "flash 
> rust" pretty quick as the acid drives out all moisture as well.  Use 
> common sense, rubber gloves etc, although it is not a very bad one to use. 
> Also dispose of it responsibly at a hazardous waste centre. It is great 
> for re-rusting nuts and bolts, but be fore-warned that if they are cadmium 
> plated, it will strip the cad. It does not seem to affect zinc plated 
> fasteners, which is what the fasteners on at least the 6 cyl Healeys all 
> have.
>
> Lastly, to add my 2 cents, I have heard good things about the Por-15 that 
> others have recommended as a fuel tank sealer, although I have never used 
> it.  Another one that came very highly recommended from someone whose 
> judgment I trust is a Yamaha product specifically for cleaning, etching 
> and sealing fuel tanks. I have not used it either, but have bought two 
> kits in anticipation of two tanks that I need to do in the near future. 
> The part number is ACC-FUELT-CD-KT.  I bought mine from a Yamaha dealer in 
> the US - it is unavailable in Canada and I recall it was about $15 for the 
> kit.
>
> One I would stay away from is KREEM tank sealer.  I used this many years 
> ago and it stood up well until about when they started introducing Ethanol 
> to the fuel.  I am not saying the Ethanol was the problem, there could 
> have been other additives added at the same time.  The sealer has gone 
> very soft and it is starting to separate from the tank.   I am 
> anticipating an unholy mess in the near future.  The solvent for it is 
> methyl-ethyl-ketone (MEK) which is one really nasty chemical and is part 
> of the application procedure - just don't buy it!
>
> cheers,
>
> Mirek
> '60 BT7
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