I haven't ran into anything that protects guns against rust better than RIG. I use2 rechargable de-humidifiers made by Remington im my safes that seem to work very well but I live right on the coast in deep south MS and if you look up humidity in the dicitonary there is a pictureof where we live above the definition, so I keep a good coating of RIG on all of my guns also and I don't have a rust problem at all.