In a message dated 12/24/1999 8:14:13 AM, Roy wrote: <<Have a customer with a Yamaha grand who claims that Windex used as a cleaning aid ruined the surface. The finish IS damaged, but after looking through the archives I've not seen any evidence that Windex is indeed the culprit. Any suggestions / ideas? Thanks. Roy Ulrich>> Roy; I suppose that Windex could damage a finish if used improperly...by that I mean sprayed directly on the finish and allowed to set. Windex does contain some ammonia and this 'could' cause some dulling/spotting on polyester. Like most other things we tend to say "if a little bit is good a lot will be great!" This ain't so in most cases :-( If Windex is the cleaner of choice for a polyester finish it shold be sprayed on the cloth and not the finish, further the cloth should only be moist/damp and not 'wet'. This damp cloth will clean the finish and should be followed by using a dry cloth. Cory products makes an excellent polyester cleaner/polish for normal use and I believe several other makes are available. I have used Windex for a long time and have never had any problems, however I prefer to use Cory products for this chore. Jim Bryant (FL)
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