I have heard from several people of using Naval Jelly for iron and zinc coins. Has anyone else tried it before? For those of you who haven't heard of Naval Jelly, here is a link.
"Follow-up by priming or painting the surface, or apply a topcoat that will protect the surface from exposure to moisture" I suppose it's great if you plan on painting your coins. Seriously I believe this stuff is pretty corrosive and "takes it down to the bare metal". In other words a harsh cleaning that reimoves any patina. I wouldn't even consider it.
I would not use it at all - as a matter of fact I would not use most of what is mentioned or used on this board. All that stands out on the link is "down to bare metal" - ie strips the luster right off a coin.
What I am going by is for iron coins or zinc coins that have rusted or corroded to a point of being almost unrecognizable. Kinda like Ancients or 1000 year old Chinese coins, when you have to clean them.
I can't speak for ancients, but on those I know or was told that you can end up soaking them for months. Using a supersoft tooth bush(or something like that) and working on the coin. Maybe one of the ancient collectors will see this.
Naval Jelly, ZUD, Bar Keeper's Friend, etc. are oxalic acid cleaners. They work well with iron oxides, and tend to be too harsh ( more than the common acidic dips like EZest) for the patina of coins. However, oxalic acid cleaners are great if you ever have need to remove blood from carpets, couches, walls, car trunks, baseball bats, etc. Jim
LOL, ya beat me to another bad line. Naval Jelly? Good for greasing up boats. Or: Naval Jelly: Why is your belly button dry? Etc. But I'll spare you all.
This substance is really great for house screens. I tried it once on some screens and it really made them look like new. One small problem. These screens were held in place with a rubber type strip which the Naval Jelly dissolved and the screen fell out. However, they were clean. Cost more at a local store to replace those in the frame than the Jelly cost. Never tried it on a coin but doubt it would help them much.