Do Intercept Shield boxes "Expire"?

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Zoins
Zoins Posts: 34,489 ✭✭✭✭✭
in U.S. Coin Forum

Do you have to periodically change Intercept Shield boxes? Like Brita water filters?

Private Mint News | 2010 Lincoln Reverse Finalists
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  • coinbuf
    coinbuf Posts: 12,567 ✭✭✭✭✭
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    I have heard yes but I do not know the definitive answer.

    My Lincoln Registry
    My Collection of Old Holders

    Never a slave to one plastic brand will I ever be.
  • ms70
    ms70 Posts: 13,958 ✭✭✭✭✭
    edited August 16, 2020 12:18PM
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    I know the older boxes were good for a specific amount of time, I think 10 years? I don't know about the current ones.

  • trueblood
    trueblood Posts: 609 ✭✭✭✭
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    Too bad there isn't at expiration date on the box lol.
    If they don't they sure get weathered easily being so delicate in nature re the ultra blue film and the thin card board box and plastic see thru window.

  • chesterb
    chesterb Posts: 995 ✭✭✭✭✭
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    10 years

  • jmlanzaf
    jmlanzaf Posts: 43,045 ✭✭✭✭✭
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    Yes. They have a sacrificial anode that will eventually corrode. How long it lasts depends on your ambient humidity

    All comments reflect the opinion of the author, even when irrefutably accurate.

  • ms70
    ms70 Posts: 13,958 ✭✭✭✭✭
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    @chesterb said:
    10 years

    That's what I thought. I'm also going to assume there's a safety factor there of a few years.

  • NumisOxide
    NumisOxide Posts: 11,048 ✭✭✭✭✭
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    Not sure but I've had 3 boxes for well over 10 years now with various coins, tokens, medals. All them look very stable.

  • cameonut2011
    cameonut2011 Posts: 10,868 ✭✭✭✭✭
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    The original boxes had a 10 year expiration date. Assuming the new releases are the same product and haven't been changed, the same 10 year period should apply.

  • cameonut2011
    cameonut2011 Posts: 10,868 ✭✭✭✭✭
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    Always toss in a few cheap raw red cents and an ASE or two as sacrificial lambs to make sure things are working correctly. Slip them in a 2x2 and shove them in the box.

  • Namvet69
    Namvet69 Posts: 9,423 ✭✭✭✭✭
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    Good to know. Have a good day. Peace Roy

    BST: endeavor1967, synchr, kliao, Outhaul, Donttellthewife, U1Chicago, ajaan, mCarney1173, SurfinHi, MWallace, Sandman70gt, mustanggt, Pittstate03, Lazybones, Walkerguy21D, coinandcurrency242 , thebigeng, Collectorcoins, JimTyler, USMarine6, Elkevvo, Coll3ctor, Yorkshireman, CUKevin, ranshdow, CoinHunter4, bennybravo, Centsearcher, braddick, Windycity, ZoidMeister, mirabela, JJM, RichURich, Bullsitter, jmski52, LukeMarshall, coinsarefun, MichaelDixon, NickPatton, ProfLiz, Twobitcollector,Jesbroken oih82w8, DCW

  • johnny9434
    johnny9434 Posts: 34,051 ✭✭✭✭✭
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    Good info to know

  • 1630Boston
    1630Boston Posts: 14,157 ✭✭✭✭✭
    edited August 17, 2020 4:46AM
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    This from their website :)

    As the solid state materials in the Intercept plastic react with and permanently neutralize the corrosive gases the color of the material changes. So the color change from dark brown to jet black tells us that the material is working, and once a jet black color is reached, ** it also tells us that we need to purchase new Intercept products**

    http://www.interceptshield.com/faqs.html

    Successful transactions with : MICHAELDIXON, Manorcourtman, Bochiman, bolivarshagnasty, AUandAG, onlyroosies, chumley, Weiss, jdimmick, BAJJERFAN, gene1978, TJM965, Smittys, GRANDAM, JTHawaii, mainejoe, softparade, derryb, Ricko

    Bad transactions with : nobody to date

  • messydesk
    messydesk Posts: 20,814 ✭✭✭✭✭
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    I wonder if you can "dip" an IS box (by which I mean wipe down the liner with dip) to refresh it.

    John
    Keeper of the VAM Catalog • Professional Coin Imaging • Prime Number Set • World Coins in Early America • British Trade Dollars • Variety Attribution
  • ricko
    ricko Posts: 98,724 ✭✭✭✭✭
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    I know they have a finite life (as stated above) under normal conditions... I wonder though, if stored in conditions that do not 'use up' the material, if that 'life' is extended. Cheers, RickO

  • NoGold
    NoGold Posts: 41 ✭✭
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    I own some of the original boxes that have the individual cases for certified slabs. The protection has long expired (stated 10 years on the brochure) but they still offer great storage and protection from damage. I like that each slab is in its own case with a small cellophane window that displays the coin and the label. I'm not sure if they still make those anymore. I occasionally see them offered on EBay.

  • Zoins
    Zoins Posts: 34,489 ✭✭✭✭✭
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    @messydesk said:
    I wonder if you can "dip" an IS box (by which I mean wipe down the liner with dip) to refresh it.

    I'd be concerned about the sacrificial anode still being contaminated. Is there a way to remove and replace it?

    Private Mint News | 2010 Lincoln Reverse Finalists
  • Sonorandesertrat
    Sonorandesertrat Posts: 5,695 ✭✭✭✭✭
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    I just have old Intercept Shield boxes for my RD and RB copper coins. As a further precaution, I put fresh Lincoln cents in the safety deposit box, to serve as sacrificial coins. I keep paper products inside the box to a minimum, and refuse to permit felt, wood, velvet, rubber bands, etc. inside any of my safety deposit boxes used to store coins.

    Member: EAC, NBS, C4, CWTS, ANA

    RMR: 'Wer, wenn ich schriee, hörte mich denn aus der Engel Ordnungen?'

    CJ: 'No one!' [Ain't no angels in the coin biz]
  • jmlanzaf
    jmlanzaf Posts: 43,045 ✭✭✭✭✭
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    @Zoins said:

    @messydesk said:
    I wonder if you can "dip" an IS box (by which I mean wipe down the liner with dip) to refresh it.

    I'd be concerned about the sacrificial anode still being contaminated. Is there a way to remove and replace it?

    There's no contamination to be concerned with. The problem is that a "sacrificial" anode sacrifices itself. Once the material oxidizes, it is irreversible.

    You could put a piece of magnesium ribbon in the box to replace the original piece.

    All comments reflect the opinion of the author, even when irrefutably accurate.

  • MetroD
    MetroD Posts: 2,568 ✭✭✭✭✭
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    Great thread with some really good information. My thanks to all that contributed.

    Personally, I have had difficulty locating "Intercept Shield" boxes to purchase. So, I have been using "Lighthouse" products.

    Lighthouse Links:

    Key Lighthouse Excerpts:

    • "How long does INTERCEPT® remain effective?
      INTERCEPT® is used for storage periods of up to 15 years. Depending on the location, the alloy concerned and the storage conditions, the product may remain effective for much longer. [...] Please note that repeated opening of an INTERCEPT® product reduces its duration of effectiveness. To extend the duration of effectiveness of INTERCEPT® products beyond the 15 years, it is recommended to close it immediately after use and to avoid frequent opening."
      Source: "FAQ" section @ https://www.lighthouse.us/intercept/

    • "Can I tell when the effectiveness of the INTERCEPT® film has worn off?
      Yes. When the potential of the INTERCEPT® film has been exhausted, the film will turn a dark grey/green colour (not the coins!). When this discolouration occurs, you should replace the INTERCEPT® product with a new one."
      Source: "FAQ" section @ https://www.lighthouse.us/intercept/

  • mothra454
    mothra454 Posts: 277 ✭✭✭
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    @Sonorandesertrat said:
    I just have old Intercept Shield boxes for my RD and RB copper coins. As a further precaution, I put fresh Lincoln cents in the safety deposit box, to serve as sacrificial coins. I keep paper products inside the box to a minimum, and refuse to permit felt, wood, velvet, rubber bands, etc. inside any of my safety deposit boxes used to store coins.

    The sacrificial coins seem like a good (and cheap) idea too. I'm not sure how the post-1981 cents would work though being that they are only copper plated zinc. The plating may be thick enough that's just as effective, since the reaction just takes place on the very top layer of metal.

    Successful BST transactions with: Cameonut, Rob41281

  • Sonorandesertrat
    Sonorandesertrat Posts: 5,695 ✭✭✭✭✭
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    mothra454,
    That's the point--the plating is thin, but we are talking about a surface reaction and a thick coating of copper won't make any difference. I also keep paper products (including currency) in a separate safety deposit box, away from coins.

    Member: EAC, NBS, C4, CWTS, ANA

    RMR: 'Wer, wenn ich schriee, hörte mich denn aus der Engel Ordnungen?'

    CJ: 'No one!' [Ain't no angels in the coin biz]

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