Re: Old Calulator Cleaning Message #7 Posted by Larry Corrado, USA (WI) on 8 Dec 2003, 3:47 p.m., in response to message #1 by Gordon Dyer
I've cleaned about 100 calculators (mainly TIs and HPs), and have had very good luck with Windex. I use Q-tips (small sticks with cotton swabs at the ends) and am careful not to rub too hard to avoid scratching. I dry the surface with a soft cloth immediately after cleaning. I've had only one calculator lose any of its markings or otherwise show damage from the Windex, a TI 55 as I recall.
I also use Goo-Gone, but only for sticky substances, such as label adhesive. I've seen it cosmetically resuscitate some really grungy machines.
And of course, always test the cleaner in an out-of-the-way place on the case before applying to the more visible areas.
Larry
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