Thread: The problem with card holders
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Old 02-29-2008, 02:45 PM
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Default The problem with card holders
Posted By: barrysloate

Some plastics have PVC's which over time will damage paper. The most inert plastic, and the safest, is mylar.

When a card is placed in a thin sleeve before being slabbed, that sleeve is mylar. But I would hope each grading company uses plastics that are safe.

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