Ultra Pro toploaders? Made of what?
Spartcom5
Posts: 397 ✭✭✭
Hey guys so for awhile now I have been wondering what exactly Ultra Pro toploaders are made from? I can only find they use semi-rigid vinyl but it doesn't state anything as to whether they are acid free or not. Being vinyl I assume they aren't acid free? Is this safe for the cards as long as they are in sleeves? Any input on this matter?
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I don't believe they are vinyl but styrene. I don't use them so I could be wrong.