[DeTomaso] NPC- GAS TANK SEALER TRAIL BIKE

[gow2 at rc-tech.net]

I have cleaned metal with acid and found it often begins rusting as soon
as the acid is removed. I would be a fan of coating it right away.

G


> I used phosphoric acid, a weak acid thats safer to handle than most
> others.
> Its sometimes sold as concrete etch but check the label- some etches are
> hydrochloric acid which is a dangerously strong acid! I added about 1/2
> full
> of the acid and filled up with plain water, then let it sit overnight.
> Pour
> the mix out & dispose of responsibly, rinse the h... out of the tank. The
> inside will be clean flat white indicating a thin coating of iron
> phosphate has
> been created. The tank can safely be used as-is or if it leaks (which
> you'll find during the overnight soak) add some sealant but pick one thats
> compatible with modern fuels. Many are not and alcohol or MTBE especially
> will
> loosen them up and plug the little carb jets. FWIW, all my kids learned to
> ride
> on a Z-50. They're nearly indestructible. Good luck- J Deryke
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