Not a cleaning tip, but a prevention tip. Wrap the connector with electrical tape and then apply the coax seal.
Yup, that makes good sense Steve and should clean up fine when the inevitable day comes to do that. Thanks for the common sense!
Carl - When I put new feedlines on the tower, someone handed me a couple feet of that sticky crap and told me how wonderful it was. Fortunately, several people warned me about what a mess it makes, so I dodged that bullet. I have no clue how you could clean that off without destroying the connector on whatever antenna feedpoint you applied it to.
Meanwhile, these "clay-covered" right angle connectors and barrel connectors that were being dumped by a ham across town turned out to be old but really nice Amphenol connectors. After using mineral spirits to finish the cleaning process they shined up nicely and look brand new!
Rob