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for fear that the steel wool shavings will reek havoc on the electrical connections. I may be overly cautious here.
... Most of them (not all, but most) will dissolve and crumble plastic in a heartbeat.
One of those that will not dissolve plastic but do wonders to your electrical contacts is the DeoxIT series:http://www.caig.com/
I can't remember seeing this problem but it might be a good idea to give us a short list of the more popular products that are known to cause trouble.