|MadSci Network: Chemistry|
I am not sure whether rubbing alcohol will have any effect. Certainly there is the danger of leaching plasticizers from the LPs and making them brittle. Commercial cleaning solutions (such as from Discwasher) don't have the odor of alcohol and are likely to be little more than water; the water provides the lubricant to prevent dust scratches, while the soft cloth picks up the dust. The water also helps clean the record in the same way that wetting a soft cloth allows it to pick up dust from your furniture better. Dan Berger
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