Funny thing is the brass plate trick works perfectly on old REAL chrome, but not on newer "real" chrome. Interesting.[/QUOTE]
Chrome is the final finish it's clear and shiny, what you see is actually Nichol.
On the old pieces the chrome is gone and leaves the Nichol exposed which takes on the brass easily, the new chrome protects the Nichol and can not be penetrated without removing it first.
I like what you're doing [P
How hot do the pieces have to be before they accept the brass ?
Can't this be done with a tank, battery charger, solution and using a piece of brass as a donor metal ? just asking
Oh ya, I like the big in the middle with crank hole and graduate down on sides
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They need to be hot enough to just start to turn colors, so pretty hot. I found if the steel starts to blue, you can brush on the brass pretty easily, but it takes a little effort to brush the blue off.
As far as a tank electrolysis method, i'm not sure. I see that this is the typical way for plating but it involves a few step chemical process. I doubt its as EPA friendly as brushing.
It will tank some serious time to brush all the bars ready for install, but i think it'll be worth it.
Last night i played around with it some more and found its easier to have a small mapp gas tank in my left hand and heat a little spot, brush then move on. If you try to heat a few inches at a time, the parent metal cools too quick and you have to reheat anyways.
Also, dont get a plastic handled brass brush. The heat from the metal eventually softens the handle enough you'll loose the bristles.
Im getting a wood handle as well as a small wire wheel (hard to find real brass wire wheels, not just brass coated steel wire) and will give that a shot too. It would be nice to install one on the bench grinder for doing all the bars.