Residue on back of PSA cardholders, anyone know?
 

What is the best way to remove tape residue on the back of PSA card holders without damaging the holder? Windex or rubbing alcohol? I've tried that with paper towels, but there is still a stickiness on it.

a product call Goo Gone works well. Doesn’t damage the holder. Just wipe it off with a clean paper towel when you have finished removing the residue.

WD40 also works well.... give it some time to penetrate, and just massage it in. Sometimes takes a while, but the residue always comes loose.

Then wipe the surface clean.

I second that. I use WD40 all the time to remove the stickers and residue from any slab. Works every time.

Works great!
 

The WD-40 worked like a charm. Cleaned it up, thanks!