You don't want to use silicone as it will inhibit any glues from adhering after application. Most normal solvents (acetone, MEK, alcohol) are OK as long as they're not in contact for long periods of time. Quite a few people on here clean using a quick wipe with acetone or, for longer work time, MEK (doesn't evaporate as fast as acetone.)
For most cleaning, soap and water and a stiff natural or nylon bristled brush will do OK. Though I recall you had some delamination problems; you may want to avoid brushes altogether.