Marushin Luger Bluing

Hi,
Thank you for encouragements.
I gonna slow down a bit, i'm waiting for the autosol.
I also wonder if electrolysis should work (it's purely theoretical)

Now come to think of it, I once stripped off the gold plating on one of my guitars bridge with a metal polishing compound and a dremel + polishing tool (while trying to make it shine... learned the hard way). I used the same technique to buff my Kokusai Python to mirror level. You may wanna do this to get rid of scratches.

Well, with all of that, I propose to create a French department for decoration ! 

Dear friends, like you can see my fellows from France are quite talented to custom our model guns. So maybe we can open a "custom shop"
What do you think about??

  

Hi,
@ Momocampo,
No chauvinism in the forum! It's unmannerly!
@cosmitron,
I gonna finish with the dremel too
@JohnnyV,
Momocampo did the same thing several times (i mean removing the golden plate) with talent.

Hi Dronne

@JohnnyV,
Momocampo did the same thing several times (i mean removing the golden plate) with talent.

I think as I said in the post everyone else only polished of the top layer of gold plating, (we have all done that:)
BUT Never has on forum anyone ever removed all gold/nickel/copper before
YOU ARE THE FIRST !!!!!!
Please anyone correct me if I am wrong:) (it has been known)

Hi,
All rigth!
Well, i didn't specifically sought to do. Before that, i wasn't aware about all those layers.
I guess that the blueing liquid may work faster if in direct contact with the zinc alloy.

Yes it will work much faster!!!! look on here for post regarding blueing zinc:)

As I said the problem has been hard to blue nickel plate!!

There may be a few problems for you as now I think some of gun will be zinc, some nickel....
But you can do it!!

Yes, but the result you got is really beautiful. I like the luxurious appearance of the finish.

Hi,

Sorry but I don't see what Dronne have done different about his sand. I am maybe stupid but I don't see   
Can you explain Johhny please??
I don't want to critic the job of course, I hope Dronne will not be upset

From what I understand, Dronne not only stripped off the gold plating but also took off the nickel plating underneath while you Momocampo for instance, sanded off the gold plating to obtain that beautiful nickel finish on your revolvers. Stripping all the layers of plating to the bare material might help the bluing process.

Cosmitron has it !!

Dronne
It was 8ace not me who got the wonderful finish !
Still I do not know how:shock: 

BTW
Checked the chemistry/physics and it appears you can strip plating off by reversing the electroplating process  

Ok, understood !
Thanks cosmitron

Here, you can see the remaining copper
The copper can be blackened with the blueing liquid, but it does'nt resist to fingers contact, even after oiling

thanks Dronne, I believed this "orange cloud" was a metal default. I already saw it when I sanded model gun.

You're welcome,
It's a primer layer, exactly like they use for the chrome.
Iour ouailecome,
C'est une couche d'apprêt, exactement comme pour le chrome.

I just received my Goldie S&W revolver today. (Thanks JohnnyV). I wasn't it would be 100% N.O.S.*  
I'm still planning to do like you guys - cause it's still pretty bling-bling over the top -, but it will be heart breaking.

*N.O.S.: New Old Stock

Update: Just rubbed off the main gold part of the S&W M29 with wet 3MP 3000 pad. Super easy, and leaves no scratches.
Now I share a problem mentioned before by Dronne. Get rid of the gold plating on non-flat and very narrow areas. I used a toothbrush with toothpaste with little success. (works on some area like the grip part of the frame), I'll try some metal polish tomorrow and let you know how it works.

It looks really nice so far, even with the gold cylinder & thumb piece (not 100% sure if I'll go as far as you 8ace and Dronne and might stop at the nickel look)

Spent more time rubbing my beautiful piece of metal today, but I'm still concerned about how to remove the remaining gold plating without scratching my lovely gun.
Looks like you guys figured it out. How did you make it?

I was OK with the gold plating yesterday, but now I'm so close to the silver finish, I HATE it.

Hi
Autosol or "brasso"
cotton buds and patience:)
Nice job!

Yes no others solutions, except courage and patience.

"Allez mon pote, courage! Tu finiras par y arriver "

Hi guys!
Autosol rules!
It works really fine, as Cerwyn said, with a toothbrush and soft rags.







For the hollow, and narrow shapes it works also!!!
Thank you for your advices!

Thanks guys. Autosol: ordered.
Dronne: Again, very inspiring. The parts look like jewelry. It is beautiful.

Autosol:
Received, used, approved.

IMPORTANT WARNING

Don't remove the nickel plate!!!!!  






You can see that Birchwood liquid simply destroy the zinc alloy.
The only parts that escaped of this disaster are the ones which kept the nickel plate.

I'm really disappointed, i'll have to repolish almos all, and use another bluing liquid, the french one, seems less corrosive for the zinc alloy.

As I said I suspected you may have problems:(
But you can recover it,
1 ) persist and remove ALL the copper now you started,
2 ) use a diluted blueing solution, SHORT time in liquid, even time all parts.
3 ) when blued the zinc will look destroyed
RELAX
4 ) use a fine buffing wheel with fine buffing compound, BUFF LIGHTLY
5 ) it will not look like 8aces, but will look like a real aged blued luger...

It will be much better than you think
I used same technique here :
https://mp40modelguns.forumotion.net/t3643-marushin-saa-custom-blued

Good luck ! the harder the work, the greater the rewards