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(Topic ID: 170674)

Stripping battery corrosion with a strong acid

By barakandl

7 years ago


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    Post #1 Cleaning procedure & results with acid compound on classic Bally MPU board Posted by barakandl (7 years ago)

    Post #7 Cleaning technique Posted by barakandl (7 years ago)

    Post #8 Cleaning results of the acid compound on WMS system 3-6 MPU board Posted by barakandl (7 years ago)

    Post #10 Results of applying the acid compound on WPC MPU boards Posted by johnwartjr (7 years ago)

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    #90 4 years ago
     
    GTX

    gdonovan

    Pinside member

    7y 185K 13,203 70

    Quoted from dluth:

    This is a little unrelated as it’s corrosion OFF the board (but close).
    It’s my Safe Cracker. The MPU board has been replaced with a Rottendog, a sign that there has been a problem. When I took the board out the other day, I noticed alkaline corrosion on a couple of the screws and their housings. The board itself is unblemished.
    My question is, can a get away with giving them a bit of a wipe with a vinegary rag, or do I need to pull the whole metal backboard out? I will have to take all the boards out if that’s the case.[quoted image]

    I'd use the Zep toilet cleaner with acid, it works great! $4 at Home Depot.

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    #94 4 years ago
     
    GTX

    gdonovan

    Pinside member

    7y 185K 13,203 70

    Quoted from pacmanretro:

    Then how would you rinse it clean? Don't want to just leave zep on there and put a new board in!

    How would you rinse if you use vinegar?

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