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Posted: 1/23/2009 4:23:37 PM EDT
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I store my guns and ammo in a safe with numerous dessicant packs. Additionally, I have a humidity sensor (China-mart, 10 bucks) that has the ability to show hi/low humidity readings.
To date, I have not seen a reading below 44% humidity..even if I don't open the safe for days on end. Are the dessicant packs actually doing any good? For what it's worth, there are approximately 5 pounds of it in the safe, so I'm pretty sure I have enough. Also, it is in different containers (open, paper bag, panty-hose {yup}, etc) but the humidity level doesn't seem to be affected by the amount or container-type of dessicant that I put in there. |
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From https://www.usaemergencysupply.com/information_center/food_storage_faq/types_of_desiccants.htm SILICA GEL: The most commonly known and used desiccant is silica gel which is a form of silica dioxide (SiO2), a naturally occurring mineral. It will work from below freezing to past the boiling point of water, but performs best at room temperatures (70-90° F) and high humidity (60-90%). Its performance begins to drop off over 100° F, but will continue to work until approximately 220° F. It will lower the relative humidity in a container to around 40% at any temperature in its range until it is saturated. Silica gel will absorb up to 40% of its weight in moisture. |
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