Black Matte sides and back of device have become very sticky and it is basically unuseable.

[BillJAS]

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?

[MKazi]

@BillJAS

Thank you for posting on HP Forums. 🙂

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. 

Good luck!