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A University chemistry Professor told me that this is a chronic problem with this type of coating - - so, why is it used? - - and what is the solution?
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I understand that you have an HP df300 Digital Picture Frame and the black matte sides and back of device have become very sticky and it is basically unusable.
I have sent you a private message with the contact information for the concerned team who should be able to assist you further in this case.
Hope that helps.
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