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Author Message   Finnegan Tinkerer Username: Finnegan Post Number: 120 Registered: 09-2009 Rating: N/A Votes: 0 Posted on Friday, February 17, 2012 - 07:29 pm:    Why don't you try a can of spray cleaner like CRC 5-56 electronic contact cleaner? I have had shutters that keep gumming up and they need more than lighter fluid.