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Dpmulvan Dpmulvan is online now
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Join Date: Dec 2014
Posts: 14,051
Quote:
Originally Posted by piscator View Post
Thanks for your contributions gents!

Trackrash & Clarkd, How do you get such nice results with the yellow zinc chromate? I followed the instructions to the letter, the color of my solution is exactly the same as the photo you posted. My freshly zinced parts are pristine when I dunk them. But instead of the nice yellowing that you guys get, my parts come out a mottled orange, like a diseased pumpkin! Any ideas?

Donagain, Florio, Good tips, thanks!

Here’s a coil bracket that came out nicely after five ‘strikes’ through the process. I won’t even try to yellow it. Actually, I’m starting to like the non-yellowed, gun-metal gray of the plain zinc.

Robert



The zinc layer must be shiny contain brighteners and then rinsed straight out of the electrolyte in a mild solution of hydrochloric acid and distilled water 5% then put in the sodium dichromate 10oz per gallon distilled water with 2 oz sulphuric acid.then rinsed in water hung to dry.
Old 03-10-2019, 06:38 AM
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