Quote:
Originally Posted by Peter_Spaeth
SGC holders, at least until the brand new ones, scratch if you breathe on them and get cloudy, and get these little internal cracks that reflect light. PSA holders, on the other hand, in my experience are more durable and in any case clean up beautifully for the most part with Novus. SGC do not clean well at all. My percentage of sending in SGC cards for new holders is much much higher than PSA.
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I've used some of the Meguiar's products for cleaning scratches from car headlights to freshen up PSA cases before. For the most part it works quite well.