Gas tank restoration, external color

[jensenracing77]

I will be doing a concourse restoration on a 62 Oldsmobile Jetfire over the next 2 years. On other cars I have done I was able to acquire NOS tanks or a perfect reproduction but there is nothing out there for this 62. How do I get that original zinc or galvanize look. The closest I can get  is to clean it to perfect bare metal and clear it. I still do not like this method at all for the quality I am looking for. The places I have talked to said there is no way they can do the correct galvanize  on a tank.  Anyone here do a high end restoration on a gas tank? Any advice? 

Thanks,

Eric

[cahartley]

There is "shinyish" cold galvanizing spray paint but it won't leave a mottled finish like real galvanizing but it works GREAT.

The only way of which I'm aware to create the mottled look is you'd have to spritz the tank with oil droplets which would give you a fish eye effect looking very much like genuine hot dipped galvanizing.