Blackening of metal, in the style of " do it yourself"
https://youtu.be/3KtzmILzuXQ
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Blackening of metal, in the style of " do it yourself"
https://youtu.be/3KtzmILzuXQ
From the YouTube site:
Do it outdoors. Components may cause burns
Degreasing Recipe:
Per 1 liter of distilled water:
50 g of caustic sodium(sodium hydroxide, caustic soda)
50 g of soda ash
10 g of liquid glass (silicate glue)
Burnishing Recipe:
Per 1 liter of distilled water:
500 g of sodium nitrate (sodium nitric acid, NaNO3)
500 g of caustic sodium ( sodium hydroxide, NaOH)