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Zinc for electrodes:
Zinc sheet 5.5in x 5.5in x .0078in = .21 sq ft. (140mm x 140mm x .2mm) https://amzn.to/2FWoNOE
Zinc Strip 2.625in x 50ft x .0078in = 131sq ft. https://amzn.to/2JdUPvV
More expensive but a roll lasts a really long time.
Epsom salt: https://amzn.to/2DUmZ7E
10 amp 30 volt power supply: https://amzn.to/2INtwVf
Go here to see how I clear chromate: https://www.youtube.com/watch?v=ICt7Mztnu6A
This is how I zinc plate steel parts with cheap, readily available ingredients. Yellow chromate, and clear chromate, which aren't expensive either, can be purchased from a hobby plating site, like Caswell Plating. https://www.caswellplating.com/
Zinc plating is a very durable layer of protection for your steel bolts, screws, nuts, and other parts. This plating technique is particularly useful because it doesn't require any exotic chemicals or expensive power sources. All you really need is zinc metal easy to source from hardware store, amazon, or ebay, along with white vinegar, epsom salts, and two D cell batteries. Zinc can also be derived from modern US pennies, which I will show in another video. The only thing you will have to buy special is either clear/blue chromate solution, or yellow chromate solution.
Your ratio is correct, but here is recipe.
1 Liter 5% white vinegar
100 grams epsom salt
120 grams sugar (makes it taste better) optional
8-10 sq in. pieces of zinc; Qty 2
1 amp per 10-15 sq in @ approx 1.5-4 volts
zinc plate positive & part negative
2 10 minute sessions with brushing or very light bead blasting in between.
Scale these ratios as needed. The sugar is suppose to reduce zinc grain growth to act as a brightener but I haven't noticed that it has any effect, so I just omit it now. Maybe it will work for you.
128 grams epsom salts
43 grams zinc sulfate
85 ml 5% acidity white vinegar
27 grams sugar
1915 ml distilled or Reverse osmosis deionized water
8-10 sq in zinc plates: Qty 2
6 volts & 1.6 amps per 10-15 sq in
2 15 minute sessions with brushing between plates
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