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Educate Me! How to I protect my toners from changing color?
PQMorgans
Posts: 727 ✭
How do I protect my toners from changing color? I just went viewed some of my PCGS slabbed coins stored in the blue boxes and I noticed 2 have changed colors. One overall and the other started dark a small area of black toning at the rim? Any suggestions and advice will be appreciated.
I would like to keep these and my others are they are.
I would like to keep these and my others are they are.
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"If I say something in the woods, and my wife isn't around to hear it. Am I still wrong?"
"If I say something in the woods, and my wife isn't around to hear it. Am I still wrong?"
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www.brunkauctions.com
Toners are that for a reason. It will continue long after we are dead.
``https://ebay.us/m/KxolR5
``https://ebay.us/m/KxolR5
<< <i>If you remember that metal is reactive, you should sleep a lot better.
Toners are that for a reason. It will continue long after we are dead. >>
Not if placed in an intercept sheild for slabs. There is a "sacrificial" metal (copper I think) that will absorb any substances that might have otherwise attacked a coin in this protective holder. Its quite a good concept actually. However, since no long term data on these is yet available, I dont know how often the box should be changed. But I'd imagine no more frequently than every 5 years or so, depending on the environment the coin is stored in of course.
I will not argue the intercept shield benefit as a preventative measure in "KEEPING" something the way it is. I'm just sayin'
We'll see, in time.
``https://ebay.us/m/KxolR5
<< <i>How do I protect my toners from changing color? I just went viewed some of my PCGS slabbed coins stored in the blue boxes and I noticed 2 have changed colors. One overall and the other started dark a small area of black toning at the rim? Any suggestions and advice will be appreciated. >>
I would store them in a place that has a stable temperature with an ample amount of silica dessicant (to limit the humidity). IS products may help as well, but as others have said, there is limited information on their long-term efficacy.
How long have the coins been in storage? Another concern is that AT coins are notorious for changing color over time so while the color change doesn't automatically make your coins AT.....it could be a red flag that something may have been applied to the coins surface sometime in the past and whatever was applied coould continue to degrade the colors in toning until it goes black.
dip them in clear plastic or spray with clear plastic spray
If you seal them in plastic and suck all the air out with the sealer then there is nothing to allow continuation of the color change.
<< <i>Use a vegetable sealer.
If you seal them in plastic and suck all the air out with the sealer then there is nothing to allow continuation of the color change. >>
Plus they still taste great years later.......
Maybe I am thinking of the little chocolate gold ones
ten years ago, it has been changing color for those ten years,
The frost is now limited to just the top of Franklins head, the rest
of his head and face are covered in a purple haze, not ulgy but
I have been surprised it just keeps toning growing each year
more purple in color...when I bought it there was not a speck of color just white cameo...
now most the whole face is covered....
"Because I can"
myurl The Franklin All Old Green Holder Set
.........i don't think you can stop it, even if you poured molten glass over them! i think once it's ON the metal, it's just a matter of time before it advances, slowly yes, but will still "ripen" towards decay.
"If I say something in the woods, and my wife isn't around to hear it. Am I still wrong?"
<< <i>Use a vegetable sealer.
If you seal them in plastic and suck all the air out with the sealer then there is nothing to allow continuation of the color change. >>
Yes that is what I was going to say. I have a few dozen Monster Morgans sealed like that.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
PCGS Registries
Box of 20
SeaEagleCoins: 11/14/54-4/5/12. Miss you Larry!
<< <i>.........i don't think you can stop it, even if you poured molten glass over them! i think once it's ON the metal, it's just a matter of time before it advances, slowly yes, but will still "ripen" towards decay.
Im not a chemistry major, but if I had to wager a guess, i'd say that oxygen is an extremely important catalyst for any type of OXIDATION. Remove the oxygen, remove further oxidation.
<< <i>Im not a chemistry major, but if I had to wager a guess, i'd say that oxygen is an extremely important catalyst for any type of OXIDATION. Remove the oxygen, remove further oxidation.
>>
It works with rust on a car.
"If I say something in the woods, and my wife isn't around to hear it. Am I still wrong?"
(oxidized metal is no longer a metal- it's a ceramic.)
<< <i>Use a vegetable sealer.
If you seal them in plastic and suck all the air out with the sealer then there is nothing to allow continuation of the color change. >>
do those bags have PVC ?
in the bank vault for over 5 years with no change in
color. Heat and humidity can be a problem as well as
contaminants that may remain on coin surfaces after
slabbing. Finally, coin doctoring may have occured to coin
before slabbing which would tend to cause deterioration to
the surfaces over time.
Camelot
<< <i>I have stored my slabbed coins in the blue PCGS Box
in the bank vault for over 5 years with no change in
color. Heat and humidity can be a problem as well as
contaminants that may remain on coin surfaces after
slabbing. Finally, coin doctoring may have occured to coin
before slabbing which would tend to cause deterioration to
the surfaces over time. >>
A very good summary of what I was eluding too....I am sure I have a jelly donut around here somewhere for you Bear
two points come to mind:
1. coins will always continue to tone. not true
2. Intercept Shield products will protect your coins. not true
there are really two things to consider with the OP's question of How to(do) I protect my toners from changing color? the first that comes to mind is that if the coins are changing color there must be a contaminant on the coin inside of the capsule and the second is an unstable storage environment. if there is a contaminant on the coin then the Intercept Shield products can't nuetralize it and the unstable environment wherever the coins are stored will cause the toning to continue.
the only recourse i see is to crack the coins out of the holders, rinse them with acetone to remove the contamination and then store in a stable environment with/without the Intercept Shield.
<< <i>I guess your coins are AT >>
How could that be, they are slabbed
The coins pictured are not turning, I want to protect them. All coins were stored in a safty deposit box, but not all the time, I do take them out to look at them. After all Thats why I bought them. I have a few others that did start changing . I may just end up selling anything that starts to change in a way I am not happy about.
I am interested in learning more about the vacuum sealing. I'll have to see what I can find out. Possibly seal a whole bue box with the slabbed coins inside.
Thanks again and keep the ideas coming...
"If I say something in the woods, and my wife isn't around to hear it. Am I still wrong?"
(and heat and moisture)
wrap your slabs a couple times in aluminum foil
and keep in cooler place
remember slabs by themselves are not airtight (or moisture tight)
<< <i>
<< <i>I guess your coins are AT >>
How could that be, they are slabbed
>>
I don't believe the coins you have pictured are AT....not sure what the original poster was inferring but.....
Please keep in mind that there are thousands of Artificially toned coins in top tier slabs in the marketplace today. The coin doctors are very good at what they do and it's not suprising that they get some of their creations into slabs. Education is your best defense when buying coins raw or slabbed. By going to shows or searching auction archives like those at Heritage you can get a really good idea of how certain coin series tone, typical colors and patterns etc. Then when you see say a Peace dollar with rainbow bands of toning like you typically find on Morgans you will automatically question the color. It doesn't automatically mean the coin is AT but it will at least send off a warning siren in your head that certain series and denominations have very specific toning patterns and color progressions based on typical storage methods, planchet preparation and strike characteristics. Do not take a geniue NGC or PCGS holder at face value and believe you are fully protected....buy the coin and not the slab.
plastic exudes chemicals, no matter what a slab co. tells you
K S
AJ
PCGS Registries
Box of 20
SeaEagleCoins: 11/14/54-4/5/12. Miss you Larry!
It is my understanding that a truly original toned coin once removed from its toning source and slabbed would prove to remain quite stable going forward and does not really require specific care to keep it from toning more. Yes, environmental conditions such as humidity can affect that to an extent, particularly in the case of red copper turning to red brown, etc but silver coins in particular are very stable once encapsulated. There are other exceptions such as Silver Eagles which due to their purity are much more reactive, develop milk spots or even get toned by the vapors from the plastic in the slab itself but. But my comments apply to normal 90% silver for the most part.
I have had only one coin out of about two hundred which changed color significantly during my time of ownership and I honestly feel that it was questionable to begin with. But anything I own which has typical mint set, envelope or album color, or even what I believe to be original white when originally purchased has not changed one iota in as much as 8 years. And they have been stored of all extremes of temperature and humidity from California to New Hampshire. I have had coins tone in albums in a matter of a couple years but as far as slabbed coins go, I don't lose a wink of sleep about having to protect them further.
Many people don't realize that the main reason for coins toning in a slab, particularly in rapid fashion is because it was tampered with, dipped, acetoned, etc, artificially colored, etc. prior to being holdered and the surfaces still have contaminants on them which are still reacting with the surfaces. That is probably 90%+ of the cause for coins toning in a holder so rather than worry about Intercept Shield holders and vacuum bags and what not, try to worry more about whether a coin has been played with. I know it is easier said than done to pick them with 100% certainty but you might as well be focusing your attention in the right direction.
<< <i>If the coins were NT, I do beleive that Intercept Shield double boxes will protect them from continued toning. I have a bunch of toned morgans and other toned type in those boxes for about 3 years now, and none of them have changed.
AJ >>