• Watch Out for Scammers!

    We've now added a color code for all accounts. Orange accounts are new members, Blue are full members, and Green are Supporters. If you get a message about a sale from an orange account, make sure you pay attention before sending any money!

I got a new safe! Now a humidity question

Re: I got a new safe! Now a humidity question

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RollingThunder51</div><div class="ubbcode-body">Dehumdification in a safe.....

First off, you will need a good (small) digital temp/hygrometer to know what is going on (min/max function.) I couldn't find the tiny one I bought on line for you, but this one is ok. http://www.focalprice.com/Indoor_Max_Min_Digital_Thermometer_with_Hygrometer_White_HE173W_10335.html

Whatever you do, by watching the actual values, you can get to the truth about humidity in safes. Your target is pretty much anything less than 45% humidity at room temp.

Golden rod = Now think about it a bit. It might have value, but not by itself. It was designed for clothing closets, not safes. Safe come in only two flavors:

Sealed - Here we find that with heat you are putting all the humidity in the safe into suspension, making sure that inside your safe is like a day on the delta. Not Good. For those of you that are about to suggest (like the Goldenrod advert) that it heats up your safe so that moisture stays in suspension..think delta.

Unsealed - Here we find that with heat, the hot air goes out the top (heat rises) and, yep cold moist air from outside comes in the bottom. A perfect cycle of exchanging whatever the humidity is outside your safe back into your safe. Eddy builds the finest ship models in the world, people pay 6 figures for a model of their super yachts. He has been paid to build a $10k case and keep the models in perfect shape...on a ship! Tried Goldenrod...once...nope. http://www.yachtmodels.com/

So what does one do if they want to keep the contents of a safe perfect for decades?

1. Nothing goes in without being cleaned and dry.
2. Try not to open your safe on monsoon days.
3. No leather, no cloth, nothing porous that can hold moisture goes in. That includes paper (dry paper in a plastic bag).
4. Metal gets properly oiled. Wood gets properly oiled. Leather that has to go in (slings?) get oiled.
5. All actions open if possible.
6. Rechargeable cannisters of desiccant the more the merrier. I use a 300 gram unit, but I couldn't find a link for you. A few years ago you could get the monster big cannisters. I haven't seen them in a while or I'd post a link. Try and avoid the paper box kind (see note).

http://www.desiccantsonline.com/index.php?_a=viewProd&productId=323

Your going to recharge them every time they turn the littlest bit pink. After you take them out of the over, let them cool to the touch and then into the vault they go. Why? Well, be cause as they are cooling they are, right! They are pulling cold air in and hot air out the top...just like a Goldenrod. Wet room and a good 20% is lost in the cooling.

Note = Place the cannister 3-4" away from everything metal and on its own plastic plate. Ever see desiccant on metal? Like super salt! I am not a fan of the paper box with the bag desiccant, inside is a bag that is tied with a string. If that stuff gets out...bad news. Also, if you have bought a new (or a used) fireproof safe, they are moisture magnets at first. The material that makes them fireproof absorbs water big time! In fact, many think that putting guns into a fireproof safe is a mistakes as the "steaming" that will follow very high heat (thats how it works) is very destructive for both wood and metal. In any event, you will find it will take a good number of drying cycles to clear a fireproof safe. It can take months. When done your cannister will last a good six months without needing a charge. New fireproof safe = wet safe. Obviosly less of a problem in the desert.

You will be rewarded with no rust for as long as you do your part. </div></div>

Awesome advice RollingThunder!!!
I just put a bunch of Eva-Drys on order! This is the Best safe dehumidifying thread I have ever read and I have searched quite a few times!! The rust monster sucks!! I wish I knew this stuff years ago, especially about the fireproofing holding water...
 
Re: I got a new safe! Now a humidity question

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RollingThunder51</div><div class="ubbcode-body">..

If you take the time to read this thread you will quickly see why a rod by itself is not going to do a damn thing for you.

,, </div></div>
I have quietly read this bull for years on here, what no one understands is the concept of relative humidity. Given a stagnant mass of air as heat goes up the relative humidity goes down and that is how a Golden Rod operates, it increases the temp in the safe therefore reducing the relative humidity. I have had one in one of my safes for over ten years never a speck of rust on nothing ever. It worked so well that I put one in my second safe in the basement, and another in my reloading die cabinet (dies were getting hazy rust on them) no, none, nada on the rust. Take it for what it is worth but it works GREAT for me.
 
Re: I got a new safe! Now a humidity question

Well, I know this thread was resurrected from 2 years ago today, but I never saw the OPs question answered.

For everyone asking, rust may form at relative humidty above 50% according to the US Navy, though there is some evident discussion on that.

I try to keep my safe in the 40-45% RH range to be sure.
As noted above, that might be a problem for some wood stocks, so make sure to keep them oiled.

madd0c