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 Replies: 19 / Views: 2,791 |
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New Member
Brazil
3 Posts |
For how many years a good quality coin holder (leuchtturm, for exemple) can be used to store coins without damaging them?
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Pillar of the Community
 United States
7939 Posts |
 I have coins that have been in simple 2 x 2 holders with mylar windows for 50 years. Edited by tdziemia
03/03/2020 10:07 pm
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Pillar of the Community
United States
7276 Posts |
I looked through a 2 by 2 at the LCS that was about 20 years old. The staples rusted but the coin looked fine.
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Bedrock of the Community
United States
94367 Posts |
In my experience, simple Mylar 2X2 holders last almost indefinitely.
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Moderator
 Australia
16817 Posts |
In simple terms, we don't know how long a 2x2 will last under normal circumstances, because not enough time has elapsed since the invention of 2x2s, only about 60 years ago. So the answer is "at least 60 years". I own a couple of coins that have been sitting in the same 2x2s since the 1960s. As HFJ noted, the staples will rust to pieces and fail before the plastic disintegrates, and the staples can simply be replaced with fresh staples.
It also depends on the environment the holders are exposed to - exposure to full sunlight will degrade it rapidly. A Mylar balloon sitting in full sunlight can last anywhere from 6 months to 4 years.
The hard plastic slabs used by the TPGs to preserve coins are rated for several centuries.
In terms of long-term storage, it isn't the degradation of the holders that is the issue - it is the environment thatt he holders are kept in. No holder is 100% airtight, and anything that lets in air can result in damage to a coin in the long-term.
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
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Rest in Peace
United States
18456 Posts |
Not sure of why your asking that question . I'm in the hobby now about 58 years and I've never seen or heard of a holder be it cardboard or plastic fall apart or disintegrate over years of use .
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Bedrock of the Community
Canada
24885 Posts |
To the Forum. |
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Moderator
United States
188213 Posts |
to the Community! |
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New Member
 Brazil
3 Posts |
Thanks for the answers. I'm new to numismatics and recently, talking to a more experienced collector, he told me that holders must be changed every 5 years. I thought it was strange so here I am  |
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Moderator
United States
188213 Posts |
Quote:
he told me that holders must be changed every 5 years. Looks like I missed the last eight changes!  Quote:
I thought it was strange so here I am Glad to have you!  |
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Bedrock of the Community
United States
17884 Posts |
There are coins out there in collections that have been in paper envelopes for over 150 years.
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Rest in Peace
United States
18456 Posts |
Quote:
talking to a more experienced collector, he told me that holders
must be changed every 5 years. I thought it was strange so here I am   |
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Bedrock of the Community
United States
20753 Posts |
Quote:
Thanks for the answers. I'm new to numismatics and recently, talking to a more experienced collector, he told me that holders
must be changed every 5 years. I thought it was strange so here I am Yes they should be changed every 5 years but only due to sending me the coins in them. Then I'll put them aside for about 100 years.  Are you sure that the person that told you that collected coins? |
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Pillar of the Community
United States
819 Posts |
If it's in a TPGS hard plastic slab. About two minutes once I get my hammer.
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Valued Member
United States
424 Posts |
Quote:
he told me that holders
must be changed every 5 years. I thought it was strange so here I am Are you sure the guy you were talking to wasn't just a supply seller? |
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Pillar of the Community
United States
7276 Posts |
Quote:
talking to a more experienced collector, he told me that holders
must be changed every 5 years What he probably meant is the grades are getting easier so if you get them reslabbed every 5 years eventually all coins will be MS 70  Abraço do um amigo de estado unidos :) Edited by hfjacinto
03/05/2020 3:04 pm
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Replies: 19 / Views: 2,791 |
Posted 03/03/2020 10:08 pm
