also liquid rust inhibitors dont seem to work that well for me.. ive tried many name brands. the most thoroughly tested one i have is eezox. its good but not great. works better than most though. the cleaning and lubrication aspects are kinda lacking its more of a preventative measure than a true clp.

I'm using the rest of the 3 in 1 that I found then I'm probably going to get one of those Eva-Dry stuff.  I like how you can plug it in to recharge.

I'm not impressed with the performance of the Eva-Dry in my bathroom.  Don't know how much it actually helps with humidity in there after showering, but doesn't seem like much.  Maybe it sucks up choke humidity cause the color changes quick and I don't recharge enough.   

Here's a secret...

The cheap crystal kitty litter at Walmart ($5 for 10lbs) is silica gel. I oil my firearms before storage and keep a sock full of the stuff in my safe. Never had an issue with rust. I also dump about 1/2 a cup loose into my ammo cans. You can "recharge" it in an oven if you want, but it's cheap enough you'll likely just change it once a year. 

I looked for this at Walmart on a few trips there but have not seen it. Do they still carry it or am I blind?

As I was browsing the interwebs I came across a discussion on the ideal humidity level for gun storage, supposedly it should be at 45-50%. Does anyone here use a humidity meter in their safe(s)?

Edit: figured out it's called a hygrometer

http://www.amazon.com/exec/obidos/ASIN/B004K8RF10/?tag=2ahawaii-20

i bought 3 of the above hygrometers and they are all always within 1% of each other when side by side. good enough for me for 9 bucks shipped each.



P.S. for those that are wondering,
  a 40mm ammo can half full to the top with ammo with an evadry 500 model http://www.amazon.com/exec/obidos/ASIN/B000H0XFD2/?tag=2ahawaii-20 in it will yield 33% humidity, while using two out of the four of these http://www.ebay.com/itm/130592107227?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 will give me about 45% humidity in the same situation.

im not even sure what level is optimum for ammo but i assume its at least below 50%
 i should mention my house in the deep valley averaged 70% humidity when i first close the ammo cans so its different than sealing in dry ewa beach air.

Since I was browsing this thread, thought I would toss in something I read a while back that made sense after some thought.

The Golden Rod heaters (have one) work by preventing the temperature swings that can cause condensation if the air is saturated.  Like the dew forming on your beer glass/bottle.  Unless you live on Mauna Kea, unlikely you get those sort of temp changes, so the heaters may be of dubious usefulness.  That said, mine stays plugged in.

The trick besides a moisture barrier (oils) is the good old dessicant to suck up the moisture.  Like others, I use the kind you can plug in and drive off moisture every couple weeks.  The fact that they do absorb moisture backs up the theory that the heaters do not do much to prevent humidity in safes.

I'm not impressed with the performance of the Eva-Dry in my bathroom.  Don't know how much it actually helps with humidity in there after showering, but doesn't seem like much.  Maybe it sucks up choke humidity cause the color changes quick and I don't recharge enough.   

I think the humidity after showering is beyond the capacity of the Eva Dry. I have one and have to recharge it after two weeks - that's in a safe with a dehumidifying rod.