Tank inside zink plated by electrogalvanization?

[Buffalo Bill]

OK, if the rust from inside the gas tank can be cleaned out using electrosis, why can't the tank inside be zink plated by electrogalvanization? :-k Has anybody tried to do this?
I would rather have the gas tank galvanized, than use an epoxy coating.

Here is a clue about how to do it:
The electrogalvanization process uses electricity to bond zinc to steel. In this process, workers run DC electricity through a zinc-salt solution. The electricity runs through an anode and then to the steel, which acts as a cathode. The anode in electrogalvanization can be either a block of zinc, in which case it serves also as the zinc component of the zinc-salt solution. It can also be a block of lead, in which case workers must constantly add zinc to the solution. In both cases, the force of electricity running through the anode to the steel causes zinc to dissolve and bond to the steel. During this process, dissolved particles of zinc run along the line of current. This brings them to the steel and deposits them on it. The constant DC electricity causes zinc particles to bond tightly to the steel, creating a very thin layer. As in hot-dip galvanization, the steel must be thoroughly cleaned prior to this process.

 

[Nessism]

I think it would be difficult to get an even coating inside the tank, plus the metal needs to be perfectly clean or the zinc won't stick. I'd go with POR-15 tank sealer after you use some phosphate solution to etch the metal.

 

[Adler]

I had this idea a month or so again, noone responded to me.

Looks like noone has tried it, but it sounds like a fantastic idea!

 

[JEEPRUSTY]

I had this idea a month or so again, noone responded to me.

Looks like noone has tried it, but it sounds like a fantastic idea!

If you can chrome a tank on the outside whay cant it be done on the inside?

Of course its an involved process with cleaning and different layers of metals but it has to be something some bored guy has tried on a long dark winter.

 

[Hammered]

Galv and gasoline dont make a nice mix. I forget the issues it causes but its not good.

 

[Buffalo Bill]

Why not?

Why not?

The only detail I think is needed is: what kind of salt? :-k
The same Arm and Hammer stuff used for the electrosis rust cleaning?

 

[Buffalo Bill]

That raises a question?

That raises a question?

Galv and gasoline dont make a nice mix. I forget the issues it causes but its not good.

Is that why we don't see galvanized gas tanks on vehicles?
I've been meaning to ask: why aren't bike tanks built rust proof?

 

[wkmpt]

(snip)
I've been meaning to ask: why aren't bike tanks built rust proof?

It's a vast conspiracy by the fuel filter manufacturers...

 

[Guest]

Good electroplating requires that the charge on the metal is uniform over the surface, or nearly so. The charge on the outside of a part is usually reasonably close, but the inside of a part almost never is. Electroplating sounds easy, and for flat metal pieces that are very clean and need only a thin, decorative coating, it is. For other requirements, it gets very complex and very difficult.

(One of my best friends is an expert in electrocoating. When he gets a few beers in him is is hard to shut him up over problems he's had from engineers who think that they understand the process but are actually complete idiots.)

 

[Texasgs]

Is that why we don't see galvanized gas tanks on vehicles?
I've been meaning to ask: why aren't bike tanks built rust proof?

Enjoy, http://www.caswellplating.com/

 

[Buffalo Bill]

Totally Vast conspiracy!

Totally Vast conspiracy!

It's a vast conspiracy by the fuel filter manufacturers...

Them and all the makers of rust remover products!

 

[Guest]

Metal stamping technology is the reason gas tanks are usually made of uncoated steel. The zinc coating doesn't survive well when the steel pieces are sharply curved, and it disappears when the stampings are welded together.

Steel is easier to stamp and form than aluminum. The technology for aluminum forming is getting better, which will allow aluminum to replace steel in many applications. (beer cans). I'm guessing that we could now make plastic gas tanks, too.

 

[TooManyToys]

Galv and gasoline dont make a nice mix. I forget the issues it causes but its not good.

I believe that is only true with diesel.