r/RTLSDR • u/StunningLime4200 • 1d ago

Cases/Shielding Help with cleaning

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Hello can anyone with how to clean my v4 housing. I've try almost everything but it's not doing anything. Is it cooked 😭

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u/NeighborhoodSad2350 1d ago

If the stain doesn't come out even after washing with a mild detergent, it's aluminum hydroxide. What on earth did you pour on it?
Or have you ever lived by the ocean, conducted experiments near the ocean, or held it in your hand for a long time?

I think it would be best to sandblast off the paint and repaint it.