Cleaning slabs
MasonG
Posts: 6,261 ✭✭✭✭✭
I have a group of coins in slabs with something on them, but I don't know what- kind of splotchy patches. It's hard to tell if it's on the slab surface or eaten into it. Windex and a rag doesn't really help much. Has anybody had experience cleaning off something like this?
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Comments
If its a PCGS slab buff it with Plastx.
Any other slab, good luck.
ICG slabs.
Headlight polish and a rag works great
Justin Meunier
Boardwalk Numismatics
Thanks!
You can also try slab renew. It’s well recommended. You can get it on eBay and their regular store.
But be sure to read all of the instructions, like I didn't. There's a warning using it on the harder plastic NGC slabs.
Leo
The more qualities observed in a coin, the more desirable that coin becomes!
My Jefferson Nickel Collection
Be careful with windex and other ammonia-based products. They can cloud the plastic. There’s no recovery from that.
They look like abrasions in the plastic. Progressively finer grades of fine sanding film followed by polishing compound and a buffing wheel can restore a slab in a few minutes.
I use Polywatch on my watch crystal.... never tried it on a slab. Cheers, RickO
Do a forum search on this subject. It has been discussed many, many times. You will probably find hundreds of suggestions that way.
I did, but everything I found seemed to be geared towards removing scratches and that's not the problem I have. Thanks for your suggestion.
I have had very good luck with cd music discs scratch remover even on ones similar to what you show, but if the patches are worn in deep from etching, it could be better to just send it in for reholder.
My US Mint Commemorative Medal Set
WD-40 will remove many things that are on the slab.
Mission Impossible.
Looks like pitting on the slab. Repaired the same way as fixing scratches. Easier, actually.
I did an article about it here. Photobucket screwed it up a bit with their ransomware but you can still get the idea.
That's what I was thinking. Thanks for the link to your excellent demonstration of how to get rid of them.
Try this; DeWalt Scratch-B-Gone! Never have to worry about those pesky little scratches again.
USAF (Ret) 1974 - 1994 - The inherent vice of capitalism is the unequal sharing of blessings; the inherent virtue of socialism is the equal sharing of miseries. Remembering RickO, a brother in arms.
Before:
After:
Sandpaper or a polishing compound.
Check out what aircraft owners/mechanics use for their windscreens.
https://aircraftspruce.com/menus/cs/windshieldrestoration.html