Corrosion? Or no?

Discussion in 'MacBook Pro' started by yusukeaoki, Mar 16, 2013.

  1. yusukeaoki macrumors 68030

    yusukeaoki

    Joined:
    Mar 22, 2011
    Location:
    Tokyo, Japan
    #1
    Hi guys.
    I was cleaning my MBP 17 today and came across these.
    The white part were more brownish, some had the oily rainbow color, etc.
    But the thing is Im not sure if these are like this or its a corrosion.

    I dont recall spilling anything on my MBP throughout the middle of the body.
    tried cleaning them with isopropyl alcohol with qtip but it didnt come off (Im guessing its not a corrosion then?)

    Here are some of the pics. They seem to happen only around the screws.

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    Thanks in advance.
     

    Attached Files:

  2. BmwMPower05 macrumors newbie

    BmwMPower05

    Joined:
    Jul 3, 2010
    Location:
    Arizona
    #2
    I have an early 2011 15inch and noticed almost the same thing in the first picture when I had to take out my SSD for a firmware upgrade. Just on the magsafe board, no where else. Ive seen this same thing on certain iMac components too, I wouldn't think too much about it. As for the other pictures, its normal, what looks like drops of glue. I think it might have something with protecting the components from the bottom plate.
     
  3. yusukeaoki thread starter macrumors 68030

    yusukeaoki

    Joined:
    Mar 22, 2011
    Location:
    Tokyo, Japan
    #3
    I see.
    I dont recall seeing this before either because it wasnt there or I wasnt paying attention to it.
    But glad to see others have similar thing thanks.
     
  4. BmwMPower05 macrumors newbie

    BmwMPower05

    Joined:
    Jul 3, 2010
    Location:
    Arizona
    #4
    Im super OCD about my electronics. Especially my Apple products, I know water has never been spilt or even splashed on MBP before :)
     
  5. Brian Y macrumors 68040

    Joined:
    Oct 21, 2012
    #5
    It's normal :). I believe the grounding areas around the screws are copper - hence why they oxidise :).
     

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