Powder storage temperature

Tim@nutz

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Any concerns with storing powder and primers ( in their respective 3/4" wooden boxes ) in the garage which while heated is only around 10 degrees C during the winter? Any comments would be appreciated.
Thanks
Tim
 
Storage

I would say BAD IDEA .the garage is forever taking large temperature swings .humidity issues as well. Example :Your garage is set to 10c all the time well when its -30c out you open the overhead door and its instantly -10 to -20 in the garage with condensate forming all over everything.Your primers are at risk of becoming ruined..
 
In a slightly heated garage in the winter is no problem if there is not a source of humidity, such as a car being pulled in, thawing and dripping water.

We have an insulated garage that has been kept above freezing for the past 15 years, with lots of stuff stored in it (everything except cars). Since the heat is separate from the house, there is no humidity so it is a great, cool, dry place to store stuff.

Cold air coming in during the winter will not condense on warm surfaces, it is the other way around, with warm humid air condensing on cold surfaces.

If primers become damp (not wet) they will be fine when they dry out. Primers are made from a wet paste, formed and put into the primer cups, and become sensitive when they dry.
 
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My reloading shop is seperate from my residence. It is kept at 10C all winter. There is no source of moisture other than what comes in on my boots, and what comes from my lungs.

I have 15yo primers that work just fine. Powder is in sealed containers, it is fine also.
 
Thanks for the input folks. As with many others my garage has never seen a car. I use it as a workshop. I was more concerned with the colder temperature than any humidity changes. Wasn't sure what the minimum temperature powder and primers shoud be kept at.

Thanks again,
Tim
 
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