<blockquote>"The chemical compound used in The Inhibitor System is called VCI (Volatile Corrosion Inhibitor). The VCI slowly vaporizes into an enclosed area, placing an invisible barrier over a wide variety of metal surfaces. These vapors not only provide a great barrier, but they are capable of penetrating into the smallest cracks or crevices, rendering moisture and oxygen incapable of starting the corrosion process."</blockquote>
way back "in the day" we used a small block of camphor in a tool box to inhibit rust/corrosion. It may have been a "home remedy", but it sure seemed to work. I don't know if you can even find a block of camphor any more......
Well, if you want to believe their advertising AND if you want to believe that they actually tested the product before they wrote the ad, they seem to have most of the bases covered:
<blockquote>"Whether you are a sportsman, homeowner, boat owner, camper or driveway mechanic, you will appreciate The Inhibitor’s many uses. It can extend the working life of almost any piece of equipment on your workbench, in your car, on your boat, or in your home.
It can be used in:
* musical instrument cases<br>
* camping gear<br>
* marine boxes<br>
* power tools<br>
* hand tools<br>
* fuse boxes<br>
* thousands of other uses<br>
* and much more!
And it’s easy to use — just place the cartridge in your golf bag or tool chest or slide it into your shotgun chamber (use it like a snap cap and get protection too). Or place your firearm into The Inhibitor reusable gun shield. Or wipe your metal surfaces clean with The Inhibitor wiping cloth. It’s that simple."</blockquote>
At the Shotshow last year, I picked up a few samples - the ones I use are like cardboard impregnated - I placed a couple rectangular pieces into my gun case - as a precaution, seems to work, replace them quarterly.