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I have noticed that, after awhile, some of my labeled discs get a whitish powder on them. What is it?

April 26, 2017AWHILE discs labeled noticed powder whitish

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I have noticed that, after awhile, some of my labeled discs get a whitish powder on them. What is it?

1 Answer

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The white powder you may see on some labeled discs results from crystallization of the label-side coating. It is not harmful and can easily be removed with a water-dampened cloth. Wiping the disc with a damp cloth will not harm the label.