Leica LTM Restoring Leica III-G

Leica M39 screw mount bodies/lenses
Chrome

Chrome

Hi,
JSU, please see other thread about this, i´d tryed to explain my experience on this job.

Hi Jarski, thanks, in russian cams removing chrome is very easy, use chloridric acid, will evaporate plating in a blink of an eye, really! I first tested on a fed!
But with leicas removing chrome is a pain, the quality of plating is hardly seen! So when put into acid bath you have to be very carefull and forsee it in every moment, i observed galvanic corrosion (don´t know if it´s named the same in english) the problem is that acid will act on both sides of chrome one in the exterior and on the interior side the one that bonds to the brass, in that spot it will act against brass also.
The zorkikat procedure is more refined, and better fit for leicas than zorkis (with all do respect).

Cheers
 
Chloridic?

Chloridic?

I think there may be a translation issue here. I believe "Acido chloridico" translates to "Hydrochloric acid", is that correct?

I have used sulphuric acid at a moderate concentration (in fact standard battery acid) to pickle brass for either painting or plating, and it does a very good job. but I have not had much success with stripping chrome. But then again I have never tried HCl yet.

Cheers,
Dez
 
Yes

Yes

Hi Dez, i think you´re right, but be carefull chrome on leicas are really hard to take apart, i think the best way is that descrived on zorkikat website.

Bye and luck,
 
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