I'm surprised that nobody has yet mentioned CORY Keybrite keycleaner. This product is the safest and most effective for ivory, plastic, and ebony keys. I've sold countless bottles of this stuff, and people love it! (I love it too, because I make money for very little effort - it sells itself!) I use it on my ivory keyboard. It smells nice, too. Used with a just slightly damp terry cloth works best. As far as using toothpaste (Rembrandt, Opalescence, etc.) on ivory keys, it is not very effective, unless the ivory already has fairly good sheen to it, and all you're looking for is a very mild "polishing." Use rubbing compounds for best results in polishing dull, lifeless ivory. For cleanings, try CORY. Regards, John Piesik Piesik's Piano Service Carlsbad, CA JPIESIK@ARINC.COM
This PTG archive page provided courtesy of Moy Piano Service, LLC