So I recently purchased 4 coins in rattlers from an online dealer. The slabs have some old numbers written on them in sharpie. Kind of like old stock numbers or something. They also have the usual glue spots from old stickers. I know I can remove the sticker glue well with headlight lens restorer. I'm thinking it will also get the marker but I wanted to ask before I did it. Has anyone else had this problem and what did they safely use?
My understanding is that headlight lens restorer is a polish (abrasive). I'd try the isopropyl alcohol on both the Sharpie and the glue residue first.
when all else fails for sharpie, a dry erase marker and coloring over it then using the dry erase eraser spray to take of the smudge left behind of the dry erase marker. will clean it off completely. the tip and the solvent in the dry erase marker will break down and lift the sharpie, then it's basically wipe off the remaining residue from the dry erase marker.
Generally, I've had good results using the alcohol swabs - they're little non-woven sheets about 1x2. As long as you don't leave a puddle of alcohol on the surface, it's safe. https://www.walmart.com/ip/ReliOn-M...y-200-Swabs-Per-Box-400-Total-Count/911903437 400 of them will last you until the apocalypse and you don't have to try to pour bottled alcohol onto a q-tip. Not sure about the rest of you, but for me, that's guaranteed to have some everywhere.
I know the restorer is an abrasive. But these rattlers are scuffed. Not bad but they need polished. Usually I clean glue right off with the polish. I just didn't want to get any sharpie smeared or anything all over it. I never seen any with sharpie marks before. I'll definitely do before and after pictures once they arrive. And my wife take a medication in a pump she has to load with a syringe herself. I have alcohol swabs all over the house. I thought that alcohol would turn the plastic white.
I haven't yet found an India Pale Ale strong enough to dissolve Sharpie marks, but I won't give up the search.
It's never recommended to use any ammonia, alcohol or petroleum based products on acrylic plastic. Those chemicals can all damage the surface and cause it to cloud. Now that that's out of the way... I've always used 90% denatured ethanol to remove sharpie from acrylic slabs for my sports and comic collectables. It seems to work better than anything else I've tried. For tape and label residue letting dabbed on WD-40 set for a minute or so on the affected areas will dissolve the adhesives and it will just wipe off. Then I just clean the slab with a mild detergent so it's not damaged by the chemicals and use plastic protecting wipes to protect from environmental and UV.
Another option is the gauze pads designed to remove adhesives and ink from skin. I've used them many times on slabs. Can buy at drugstores. Example is pictured below. Cal
Some slabs just need to be sent in and replaced. The turn around time is fast. It costs $13.50 plus a $10 handling fee and shipping. Piggy back on another order. Turn around time is relatively fast. May not be the case with this one but nobody should be afraid of sending a junk slab in for reholder for a nice coin. Over the years some stuff gets a lot of miles on it.