[R-390] Re: Polishing

Gene Beckwith [email protected]
Wed, 09 Apr 2003 11:55:12 -0400


Gents,

There is info out there in cyber world on doing the Alodine...and I recall that Hank or someone in recent past did it/had it done for top and bottom covers for our big pets...

Also...lots of info...maybe the Alodine process for fun and restroation on Varmint Al's web page...I think that's where I may hve seen it....??  So much info out there it's tough to keep track ... btw...if anyone is in to using small lathes...for
fabrication of broken parts...check "mini-lathe.com" for great intro and hands on how to for the popular mini lathes for not too much loot available from a variety of houses...great reading and info..plus links to more good stuff...

73,

Gene

"Scott, Barry (Clyde B)" wrote:

> What you describe is alodine.  I have a frame I'm currently refurbishing.  There is a local company that will re-alodine for me.  I plan to clean/wet-sand all the pieces and have them done this way.  It should look pretty good when I'm finished.
>
> Barry(III) - N4BUQ
>
>  From what I remember from past projects, the anti-fungal varnish usually
> appeared as a light brown (if thick enough) coating on the electronic
> components and underchassis. It appears that that is the case on this radio
> as well, on the few Motorola modules that I have in the radio.
>  I think what I have is a thin plating (alodine, it seems) on all of the
> metal surfaces. The overall color of the metal is a very light yellow, but
> when viewed closely, a rainbow of colors can be seen - just like a metal
> plated camera lens. I've seen the same rainbow on the metal frames of 80's
> VCRs and audio equipment.
>  I'm not too worried about reapplying it; if there is a cheap and safe (no
> zinc chromate, thanks) way to reapply it, I'm all ears. Until then, I'll
> be limiting my polishing where needed; still have lots of it to do in this
> beat-up radio.
>
>  I was working on the Crystal Oscillator cover, with the black
> painted numbering and varnished labeling; both are pretty resilient to
> NEVR-DULL polishing. I had expected quite the opposite, especially on the
> varnished label. Now the cover is shiny! Yippeee.
>
> David P. Goncalves
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