What is "Dip", product wise?

NoGvmnt

Okay, there have been a number of threads lately concerning what is considered to have been dipped or cleaning or doctoring, but, for those in the know, what products are used to dip coins?

CLR?

Bleach?

TarnX?

Battery Acid?!

Boiling oil?

Jewel Lustre?

Jewelers Rouge?

Putty Knife?

Concrete Trowel?


Come on, inquiring minds want to know.

Jim

Gonfunko

Sorry if this comes off as being "smart", but coin dip is used to dip coins.... I also believe that TarnX and Jewleuster are used.

Steve27

Any mild acid solution.

relayer

Diluted sulphuric acid, found in Jeweluster

greghansen

Jeweluster is the brand name I see most frequently used/sold. If your going to dip more than one type of coin (silver,copper,gold,etc.) buy a seperate container for each. Don't try to clean a silver coin in the same dip you used on a gold coin for example. You also need a set of plastic or some other non-reactive tongs to hold the coin while its dipped into the solution. Supplies for dipping can be found here:

Coin Dip, Coin Tongs, and other supplies

If you've never done it before...it goes without saying...start with cheap coins to go through the learning curve. You will ruin coins. Ruin the cheap ones. Too much time 'in the dip tank' will adversely affect the flow lines on the surface of the coin. It is the metal flow lines which give the coin its cartwheel luster. With the flow lines 'eaten down' or 'rounded off' by the acidic dip solution, the coins surface no longer reflects light sharply and crisply, but rather in a flater duller look. You may want to intentionally overdip some cheap uncirculated silver quarters or dimes to learn what an overdipped or 'dipped out' coin looks like. Once you can spot them, you can avoid buying the same type of look in Morgans, Peace or other more collectible silver coins. My main experience is with silver coins, so I don't have much to offer in the way of advice for copper or gold.

To prevent overdipping, some people dilute the Jeweluster with water. I've never done that so can't tell you if its a good policy or not. My rule of thumb is if takes more than 3 seconds in the dip to remove whatever your trying to remove...your doing more harm than good to the coin. Thats my opinion only, however, and I'm sure others are more aggressive.

michael

ttt

Baley

for some reason, the word "thiourea" comes to mind.

DesertRat

Thiourea is the main ingredient in Tarnx and is a mild acid. Always use in a well ventilated area and wear rubber gloves as thiourea is a carcinogen.

TUMUSS

K6AZ

dorkkarl

chances are, if it's in liquid form, somebody somewhere has tried dipping a coin in it.

K S

BAJJERFAN

<< <i>Thiourea is the main ingredient in Tarnx and is a mild acid. Always use in a well ventilated area and wear rubber gloves as thiourea is a carcinogen. >>



The function of thiourea in the formulation is as a reducing agent NOT as an acidulant Thiourea will many metal ions back to the elemental metal.

lordmarcovan

OK- who brought the chips?

K6AZ