Cleaning brass data plates

chugwater crawlers
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17 years 1 month ago #4308 by chugwater crawlers

Cleaning brass data plates was created by chugwater crawlers

I just tried using citric acid instead of muriatic acid to clean up a brass data plate. I was trying lemon juice, which was working, until my better half said she had some citric acid in powder form. I mixed it with water and submerged the plate. It took awhile but the plate cleaned up like new. Plus no dangerous vapors.
Anyone else tried it?

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side-seat
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17 years 1 month ago #4332 by side-seat

Replied by side-seat on topic Cleaning brass data plates

I've used that aluminum siding cleaner and the plate turns a copper color then brush in one direction with a scotch bright pad. When I darken down my bronze window frames I manufacture I use this method:
Clean and degrease
Rinse in water
Dip into a dilute of 2-5% sulfuric acid
Rinse in water
Darken with the brown patina (not needed on our plates but you could do this then highlight the text)
rinse

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Cleaning brass data plates

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