| Author |
 Replies: 17 / Views: 8,749 |
Page 2 of 2
|
|
|
|
Pillar of the Community
United States
5825 Posts |
A big factor is what material you are using to vacuum seal the coin in.
Lots of plastics out there contain PVC (mostly soft plastics) which will definitely cause damage.
A non-PVC 2x2 tightly stapled are good for 5-10 years (don't forget to crimp the staples).
And they are inexpensive.
|
|
Valued Member
United States
274 Posts |
The Rwandan African Wildlife series 1 oz silver coins come in what seems to be vacuum sealed plastic. Comparing those left in the sealed plastic to those that were removed and put into an airtite, it definitely makes a difference. The sealed coins look exactly the same as they always have. Those in air totes have started toning around the edges.
|
|
Pillar of the Community
United States
3848 Posts |
Interesting topic. Wouldn't tupperware and ziplock bags do the trick? Throw some dessicant in there to remove moisture. Vacuum sealing sounds overkill, unless you live in the Philippines with extreme humidity and tens of thousands of dollars in nice coins.
I use airtites for my coins. I do realize they are not 100% air tight, but it is good enough!
Suffering from bust half fever. Want to learn how to attribute early half dollars by die variety? Click Here: http://goccf.com/t/434955Shoot me a PM if you are looking to sell bust halves. |
|
Valued Member
 United States
316 Posts |
Desiccant (of some kind) I would probably use in a safe or other storage areas i.e. draws, boxes but not in a vacuum sealed for fear of contaminating the coin or other over a very long period of time. Solely do to not knowing enough about them and chemical make up and so on in short. Never thought of a tupperware container and would never use one as storage they're not as airtight as you think they are lol. You can do the cheap way vacuum sealing and take a ziplock bag and put a straw in it and suck the air out LOL but not going that route either lol.
One of the reasons why I was thinking about vacuum sealing was the preservation of the coin and to also save space and I could look at the coin more easily anytime I want it wanted to go back to see what I had. I am familiar with other collectibles and storage in other ways and how it/to preserve certain things I am not talking about food here fellas lol some of coins, currency but also other collectibles and fine items. Just wasn't familiar with being able to vacuum seal a coin. I would have to look into the type of material to do such a thing that someone had already commented about, and if they make that for vacuum sealing. There are tubes and I believe they have which are desiccant type ones that can be used for coins I saw. I didn't see that they came in coin sizes. Therefore if they're only large tubes it would in my opinion, render it useless do to one size fit all type of tube.
I liked everybody's comments and thank you for them. Each comment had something to add which I liked.
@kanga... I have a lot that are in the 2x2 stapled and can tell you definitely after years they are done and need to be replaced. Besides going through the immense amount of coins I have to I have those that I'm contending with and I decided to browse through last night and I can tell you all kinds of stuff got in there around the circle part and the windows I'll call it have cracked like plastic when it ages for a long time.
Some coins I'm deciding on keeping and some I'm going to eventually sell and then there's some that I may just give away to some young youths on here. I have no one to leave anything to, everybody has passed and I have no children and my nieces and my nephew are not interested in them at all. Sadly many of the coin collection have got dumped in the coin machine not by me and very expensive microscopes have got tossed into a dumpster not by me. Trust me I'm beside myself about this.
@Lunch Money... Do you have one of those coins and is it still sealed? And if you have it does the packaging say would it sealed with? Just wondering maybe it could help me if I decide to take one adventure on vacuum sealing.
What can it hurt (?)
Edited by Reno911
03/25/2023 3:10 pm
|
|
Pillar of the Community
United States
1277 Posts |
The Rwanda wildlife plastic is PVC. Smells like a shower curtain
|
|
Valued Member
United States
316 Posts |
@machine20  |
|
Pillar of the Community
 United States
7948 Posts |
It sounds like a nice experiment. Just avoid anything with PVC. Polyolefins are all relatively clean and should be OK, though I doubt they are used for vacuum sealing.
I think the comment about Tupperware / ziplocks / dessicants is also on target. Remember that all plastics are permeable to both air and moisture (though some are more permeable than others). Over a long period of time, you will probably lose vacuum, and be left with a false sense of security (I am curious what the sellers of this equipment say about how long the seal will hold)..
|
|
Pillar of the Community
United States
2365 Posts |
Reno911- tsk, tsk!  My preference, as a girl, would be a more professional storage unit such as an AirTite!  Less intrusive, stores very well, protects the coins and are easily stored in an album for viewing. I can just see currency getting smashed and twisted in a vacuum sealer! Ugh! Edited by dsking
03/26/2023 10:54 am
|
|
Valued Member
United States
345 Posts |
In my experience / thought process ... any "micro" level storage that will keep the coins safe from casual damage and handling THEN on the "macro" level, put those into a climate controlled area, in a safe with desiccant. Best of Luck - Tiny
|
|
Valued Member
United States
354 Posts |
When I first got my Father-in-Laws collection I found some coins simply held in ziplock bags. Having a Food-Saver, I used regular Food-Saver 'bags', organized some coins and vacuum sealed them.
Some time latter I dragged them out to look at only to discover the plastic obscured the coin details. So I got some 2x2s and transfered the coins. I don't know what the FoodSaver bags are made of but I'm glad my coins are not in them.
|
|
Pillar of the Community
Portugal
655 Posts |
I have done it with zip bags and desiccant. Worked well. The silica gel did not even change color while they were in a humid environment. Beware the PVC is always a important warning. You can do plastic bag with desiccant and coins within capsules inside. Or within some other inert material. The are capsules for coins sold with some desiccant included. For those who want to spend more.  Edited by jecz79
09/13/2023 6:10 pm
|
|
Pillar of the Community
Russian Federation
1557 Posts |
I remembered that many coins of the late USSR were placed in a plastic seal during production. Unfortunately, for more than 30 years, the plastic has shrunk and turned into chips. I'm not sure that the coin was placed in a vacuum, but the plastic made itself felt on some coins.
|
|
Pillar of the Community
United States
4233 Posts |
Quote:
A non-PVC 2x2 tightly stapled are good for 5-10 years Or 50 years.  |
|
Moderator
 Australia
16834 Posts |
There are several old threads where people have experimented with this. In 2007, Mila-Cent tried it on some mint-fresh coins and showed the results after a month. They didn't fare well (outgassing from the plastic). http://goccf.com/t/14446In 2012, we had some more discussion on the topic, including one member's take on a home-made "vacuum sealer" using ziploc bags and a plastic straw: http://goccf.com/t/107143In 2013, necro-posted into 2016, some folks talked about vacuum sealing entier albums, which seems to work better: http://goccf.com/t/154737Some more in 2017: http://goccf.com/t/285216There are other threads where vacuum sealing is mentioned as an option, especially for people living in humid climates. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
|
|
Moderator
United States
188770 Posts |
Quote:
I remembered that many coins of the late USSR were placed in a plastic seal during production. Unfortunately, for more than 30 years, the plastic has shrunk and turned into chips. I'm not sure that the coin was placed in a vacuum, but the plastic made itself felt on some coins.  Quote:
Or 50 years. Looking good!  |
|
Page 2 of 2
|
Replies: 17 / Views: 8,749 |
Page 2 of 2
|
First Page
Posted 03/25/2023 10:57 am
