Hi Zoe, Bruce: On wood cases, I recommend Murphy's Oil Soap, mixed with water. Very small amount per gallon. It won't leave it looking streaked and dry. I would recommend Cory's Hi Gloss polish for shiny polyester finishes. Just be sure to use only cotton cloths to pick up the excess. If you don't have any, you can use anything that's good for plastic like Gel-Gloss (in the supermarket, used for shower stalls), Meguiars Mirror Glaze products, and in a pinch you can use car wax- but NOT clean-and-wax which contain abrasives. If you use Windex and other glass cleaners, it will leave streaks. Been there, scratched that. Paul McCloud San Diego > [Original Message] > From: Bruce Browning - The Piano Tuner <justpianos at our.net.au> > To: <sandell_piano at shaw.ca>; <pianotech at ptg.org> > Date: 11/06/2010 8:06:45 AM > Subject: Re: [pianotech] finger smudges > > Zoe, > General purpose window cleaning products work well on polyester. > > > > What is your favourite thing to use when cleaning finger smudges off of > > grand cases? > > > > & how often do you sell 'specialty' piano cleaning supplies to clients? > > > > thanks > > Zoe > > > > > > > > >
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