Best dipping solution?

KlectorKid · September 29, 2002 10:11PM

what do u think is the best dipping solution

mrdq · September 29, 2002 10:20PM

Cherry

dorkkarl · September 29, 2002 10:33PM

water

KlectorKid · September 30, 2002 4:38AM

TTT

nwcs · September 30, 2002 4:42AM

If you're serious, I heard that MS70 is a very good product. Acetone is the only thing I'll dip a coin into since it does not alter the coin surface.

mbbiker · September 30, 2002 4:49AM

does MS70 do somthing to the surface that acetone doesn't???

where can you get acetone? What can it be used on copper?, silver?, clad....

Placid · September 30, 2002 4:52AM

Acetone is found at hardware stores like home depot usually in the paint dept.

You can use it on anything clad or silver not sure about copper.

It dosen't eat the surface just loosens some surface contaminates. It's not very powerful so it wont remove tough spots.

KlectorKid · September 30, 2002 4:56AM

I tried MS-70 on a buffalo that had tured red and it grew green junk prettys fast

i need to get the lawn mower out on it

dorkkarl · September 30, 2002 5:28AM

warning to everybody: DO NOT DIP NICKEL! you will get hosed.

K S

nwcs · September 30, 2002 5:48AM

Acetone is non-polar and affects organic stuff pretty well. MS70, like other dips (ezest, jewelluster, tarnex, etc) are acids that strip away microns of surface metal to reveal the metal beneath (which is how it "brightens" metal). It also destroys the flow lines that the die created during striking which is why dipping interferes with a coin's natural luster (although careful and diluted dipping makes imperceptible luster changes) and eventually creates an unappealing washed out look.

Neil

coinnerd · September 30, 2002 5:51AM

If your trying to improve nickle(copper nickel) or copper your pretty much out of luck. MS-70 will remove dirt, and some light toning, but nothing else. It is a very strong detergent but will not effect the surface metal. Blue ribbon will remove surface contaminates from copper, but will not lighten the color.
Your red color is probably from the coin being in the ground and that has changed the surface of the coin. Nothing will improve the look of a coin that has been damaged that way.
MS-70 should only be used on unc or high end Au coins because it will remove the dirt and some of the natural color of a circulated coin.This makes the normal scratches and lines from circulation stand out and gives an unnatural appearance.
Don't use MS-70 on aluminum.

BSqr · September 30, 2002 6:16AM

Any thoughts on dippping modern gold to reduce hazing?

dorkkarl · September 30, 2002 6:20AM

gold can be easily dipped, it is a very resistant metal. heck, you can practically dip your gold in battery acid w/out problems (seriously!). however, i'm not sure it's worth it, since there's not much "brightening" effect.

K S

silverandvinyl · September 30, 2002 7:23AM

Placid

nce you dip it ,how and with what do you rinse it with?

Placid · September 30, 2002 7:25AM

I don't rinse it. Acetone evaporates very fast.

KlectorKid · September 30, 2002 7:27AM

i pour some distilled water on mine and then dray them with microfiber cloth ( DO NOT RUB... DAB DRY)

quarterjack · September 30, 2002 7:35AM

KelectorKid, sounds like you didn't get the MS70 completely neutralizied. It WILL turn a coin red if not throughly neutralized. Always rinse with plenty of COLD tap water after using it and then rinse with distilled water. I always go over the coin with acetone after it has been neutralizied and rinsed with water and dried off. WARNING acetone and alcohol are both VERY FLAMMABLE , BE CAREFUL!!!

Dave

DesertLizard · September 30, 2002 7:42AM

My bottle of MS70 says "contains no acid". "Safe to use on Gold, silver, mickel, copper, bronze, brass"

Personally, I prefer to use my belt sander to get the rough spots out....just kidding.

prooflike · September 30, 2002 9:42AM

I like Bullseye BBQ Sauce for dipping my chicken fingers I make.

prooflike · September 30, 2002 9:43AM

Now, the real question is: Do chickens have fingers?

littlewicher · September 30, 2002 9:48AM

I once made an acid just throwing a bunch of chemicals together. It melted right through the plastic cup. Three weeks later part of our house burned down, the part I live in, and my brother tried blaming it on me!

gemseeker · September 30, 2002 9:51AM

I have a bronze coin from the 1100's and it has some PVC crud that won't wash away from an acetone dip. I even tried scrapping it with the Q-tip but it is stuck like glue.

crito · September 30, 2002 10:18AM

It's probably not PVC (plasticizer) residue then gemseeker. More likely plain ole copper corrosion, like you see on a copper roof after the first rain.

gemseeker · September 30, 2002 1:56PM

crito - I didn't think about that. Bronze is an alloy of copper. The coin was in a flip and not airtight.

Dog97 · September 30, 2002 2:17PM

Be warned: MS-70 will remove toning!

crito · September 30, 2002 2:18PM

Here's a Greek coin with the same composition as a US nickel. It had the worst case of PVC contamination I've ever seen. Soaking in acetone removed the plasticizer, which had been on there for decades and ate away most of the details. There were a couple green spots that remained in front of mouth and under chin which is actually copper corrosion. Usually the PVC contamination looks bright green as opposed to the darker green of copper corrosion, but some plasticizer has a blue-green hue too.

gemseeker · September 30, 2002 2:32PM

Thanks for the picture example. My coin has a bluish-green tint on the corrosion. It started to grow over the past several months when it was left in the flip. The coin didn't have any noticable corrosion when I first got it. It was left in a china cabinet and over several months, the greenish stuff came over the obverse side. Although it is old coin, I spent only a couple of dollars on it, so it is not big loss.

crito · September 30, 2002 2:53PM

You could try an acid dip, since it's such a recent development (I use EZ-est.) Just usually not a good idea for corrosion. Can leave the surfaces badly pitted/porous. Plus it'll affect the color of copper (can make coin pink.) Always best to try acetone first IMHO.

dorkkarl · September 30, 2002 8:02PM

IMPORTANT ADVICE, PLEASE READ!

do NOT use a cloth to dry your coins, even by dabbing. it can leave lint on the coin which results in carbon spots. instead, invest in canned air, and literally "blow-dry" the coin after dipping or rinsing. that way, nothing ever actually touches the surface, which is extremely reactive & delicate after dipping.

this technique may save you plenty of heartache and possibly a few bucks from a damaged coin!

BTW, i DO NOT advocate dipping at all, but knowing it will happen, please consider my suggestion

K S

Best dipping solution?

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