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Thread: Blackening of metal

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    Supporting Member Kovanca Polock's Avatar
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    Kovanca Polock's Tools

    Lightbulb Blackening of metal

    Blackening of metal, in the style of " do it yourself"

    Last edited by Jon; 07-05-2020 at 12:21 PM. Reason: Adding video inline

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    Scotty12 (07-07-2020)

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    Supporting Member Karl_H's Avatar
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    Karl_H's Tools
    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)


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    Last edited by Karl_H; 07-11-2020 at 09:10 AM.

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