How do I neutralize a coin after dipping?

Millertime · September 10, 2005 12:11PM

I'm going to dip a hazy SBA (discussed in previous thread) and Russ mentioned that because it's clad it needs to be neutralized. I have acetone available so I was going to dip it in that. Will it work and how do I neutralize it? Someone else mentioned MS70, will that work better?

Thanks,
Millertime

DNADave · September 10, 2005 12:16PM

1. Stop and slowly back away from the dip.
2. Say to yourself three times: I will not ruin an original coin, I will not ruin an original coin, I will not ruin an original coin.
3. If you must, copious amounts of distilled water allowed to air dry or pat very gently to dry, should do the trick.

Millertime · September 10, 2005 12:28PM

<< 1. Stop and slowly back away from the dip.
2. Say to yourself three times: I will not ruin an original coin, I will not ruin an original coin, I will not ruin an original coin.
3. If you must, copious amounts of distilled water allowed to air dry or pat very gently to dry, should do the trick. >>

It's a raw proof SBA strictly for my Dansco 7070. I bought it off eBay for a couple of buck but it's hazy so I plan on dipping it to restore the look of a proof (I hope). Of couse if anyone has a nice looking Proof they want to send me to keep me from dipping the one I have I'd take it

.

Russ · September 10, 2005 12:31PM

I use 99% isopropyl alcohol, vigorously swirled for 60 seconds.

<< Russ mentioned that because it's clad it needs to be neutralized. >>

ALL coins need to be neutralized after a dip, but because of the copper content clad is more prone to problems if not done properly.

<< If you must, copious amounts of distilled water allowed to air dry or pat very gently to dry, should do the trick. >>

Air dry and you're likely to get water spotting. Pat dry and you're likely to get hairlines.

Russ, NCNE

Millertime · September 10, 2005 12:33PM

Thanks Russ but how do I neutralize it? Will rinsing it with bottled water neutralize it properly?

Russ · September 10, 2005 12:34PM

<< Thanks Russ but how do I neutralize it? >>

The neutralizing agent is the isopropyl alcohol. Plain distilled water will NOT completely neutralize dip.

Russ, NCNE

Millertime · September 10, 2005 12:36PM

I thought the alcohol was the dip.

Russ · September 10, 2005 12:38PM

<< I thought the alcohol was the dip. >>

No, "dip" is an acid based product such as eZest or Jewel Luster.

Russ, NCNE

Millertime · September 10, 2005 12:41PM

So to get the haze off I need to "dip" it in one of those products and then neutralize it with the alcohol. Is that the best wasy to get the haze off?

Thanks for all your help Russ.
Millertime

JustGotRipped · September 10, 2005 12:41PM

I always thought "dip" referred to acetone.

Russ · September 10, 2005 12:45PM

<< I always thought "dip" referred to acetone. >>

It frequently does, but that's a misnomer. Acetone is not "dip".

<< So to get the haze off I need to "dip" it in one of those products and then neutralize it with the alcohol. Is that the best wasy to get the haze off? >>

It is the most effective, but if the haze is light, MS70 should be fine and doesn't need to be neutralized with alcohol since it's just a detergent. If using it, thorough rinsing in distilled water would be suitable. Oh, and MS70 is also not "dipping".

Russ, NCNE

Millertime · September 10, 2005 12:47PM

What do you use the acetone for?

Russ · September 10, 2005 12:48PM

<< What do you use the acetone for? >>

PVC or tape residue.

Russ, NCNE

Millertime · September 10, 2005 12:51PM

Will a craft store carry MS70? I know the coin shop I go to doesn't.

Russ · September 10, 2005 12:53PM

<< Will a craft store carry MS70? >>

Don't know. One of the coin shops in my area carries it.

Russ, NCNE

Millertime · September 10, 2005 12:57PM

Thanks Russ, you've been a big help.

Millertime

RonMan · September 10, 2005 1:29PM

Millertime..

I got mine here....Brent-Krueger

JadeRareCoin · September 10, 2005 1:37PM

To dry a coin after rinsing with distilled water, you can use canned (compressed) air. Pat drying a coin is okay for business strikes, but dangerous with proof coins. Air drying is NOT a good idea with any coin.

Rollerman · September 10, 2005 2:29PM

"Dipping" as so many dislike here on the forum, refers to jewluster as sold in most coin stores.
In the case of your SBA dollar, dip it in the solution for a split second and immediately place it in a mix of baking soda and water (roughly a tablespoon of baking soda to a cup of water). The baking soda will neutralize the acid dip immediately. Swish the coin in that mix for the slow count of 5 to 8 and then hold the coin under running tap water for a few seconds on both sides of the coin and pat dry with a clean cloth - NO RUBBING. Allow it to set for a few hours before putting it in a holder to be sure allthe water has evaporated. Your coin will come out looking great and no one will be able to tell you ever dipped it.
When dipping become a problem it's when coins are held in the dip too long and/or the dip isn't properly neutralized or removed afterwords. Dipping a coin repeatedly will also result in reduced luster.
Dipping isn't something I do very often, but have converted a few ugly coins into some pretty attractive ones.
Best ofluck, Pete

ldhair · September 10, 2005 2:58PM

I like to put a small amount of dip in a dish and dilute it with distilled water.
This seems to slow it down a bit.
Pat drying a proof sounds really risky to me.

How do I neutralize a coin after dipping?

Comments

Leave a Comment