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Tweakers' Asylum: Re: How much could he be sanding off? by jneutron

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Re: How much could he be sanding off?

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JR : ""If you stayed STRICTLY on the very edge, it shouldn't do anything adverse, as long as the label layer did not continue to flake or degrade once it was 'broken' at the very edges.""

I disagree..

I believe that the top surface of the CD where the aluminum is applied to is extremely smooth prior to aluminum deposition..and i believe that extremely smooth surface extends all the way to the edge of the cd..

Very smooth surfaces don't have very good adhesion qualities. The cut edge of the disk is probably not polished, so I believe the coating needs to wrap over the edge in order to keep the coating from peeling from temp cycling..the car enviro being the worst.

I think it will be possible to see de-lamination of the coating at the edge, there will be color fringing.

JR: "" Still an iffy thing to be doing to CD's.""

Agreed.

Cheers, John



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