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Posted: 10/8/2004 2:48:42 PM EST
If you wanted to store a gun or ammo for a long time, what would you say to sealing it in a
vacuum sealer bag, putting it in a box, then entombing the whole thing by filling the box it sits in with expansion foam?

Yes, it's not quick access, but it would be more reliable than just vacuum sealing, and if left in
an unheated vacation cabin, I'd feel alot more confident the elements would not get to it.

Any negatives you can think of other than quick access?

Link Posted: 10/8/2004 3:05:11 PM EST
Moisture.


Any humidity present in the back during sealing would probably just condense. Add some silica gel and you're probably okay.


Good idea on the foam, though. You oughta post a link to this over on the Survival Forum. Those guys know caching.
Link Posted: 10/8/2004 3:15:08 PM EST
Check that the foam will not attack the plastic that you have wrapped the item in, Saran wrap will not work.
Link Posted: 10/8/2004 3:33:18 PM EST
don't bother. It doesn't work.
Link Posted: 10/8/2004 3:35:51 PM EST
Make a PVC tube with an air valve on it. Use vacuum pump to draw out the air. Pump in Argon, it's an inert gas and inhibits rust.
Link Posted: 10/8/2004 3:42:53 PM EST
I'd go with 50cal's idea. Use threaded ends for a quick access and make double sure the valve has no leaks
Link Posted: 10/8/2004 4:40:44 PM EST
Bad idea - it absorbs water like crazy and its glass transition temperature is not much above room temp - it will crumble to dust. Even if little water is available by sealing, you can't keep it from falling apart.
Link Posted: 10/8/2004 4:54:33 PM EST

Originally Posted By AeroE:
Bad idea - it absorbs water like crazy and its glass transition temperature is not much above room temp - it will crumble to dust. Even if little water is available by sealing, you can't keep it from falling apart.



+1
Link Posted: 10/8/2004 5:00:56 PM EST
Good info for ALL!
Link Posted: 10/8/2004 5:07:46 PM EST
Link Posted: 10/8/2004 5:17:34 PM EST
Brilliant Idea, Jethro! GO FOR IT!
Link Posted: 10/9/2004 4:42:51 AM EST
Wrap the item in vapor-phase corrosion inhibitor paper, and/or put VpCI chips into the bag before sealing.
Link Posted: 10/9/2004 4:59:16 AM EST

Carefully memorize the location


You can also use a GPS for plot, but I would still memorize location in case your GPS receiver cannot be used for whatever reason in SHTF times.
Link Posted: 10/9/2004 7:58:16 AM EST
The Army used to store starters and alternators this way. You cut the box open on a cut line marked on the box. Inside packed in foam and wrapped in a barrier bag was the spare part.
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