I know this is only my second posting to this forum, but reading this thread, I want to reply.
I own a business that deals specifically with corrosion control. We have 2 offices, one in our home, and the other at Schofield Barracks, Hawaii. We treat all the Army tactical equipment for corrosion control. We use CarWell CP-90/T/32, or consumer name Rust COP.
We distribute CarWell and also CORTEC Products.
I have found that combined, with CarWell and Rust COP makes a very "bullet-proof" system for corrosion control on firearms.
Our system is this, clean with CORTEC VpCI (vapor phase corrosion inhibitors) BULLFROG Gun Wipes, treat with CarWell CP-90 as you would with break free, and store weapons in a gun box (used to carry the firemarms to the range) using CORTEC/BULLFROG VpCI inhibitor emitters.
These emitters are big enough to put into a firearms safe, and the smallest inhibitor emitter is for 1 cubic foot, up to 400 cubic foot. They can be introduced as more than 1 to build up on the cubic foot area to protect. To give you an idea, these products are used to protect the voids in double hulled ships, so if you are htinking about the size of an area, the emitters can protect whatever you may have.
I have been doing 2 gun shows in Honolulu a year for the past 6 years, and selling this approach to collector and wepaon owners. We guarantee this system, thta if ANY corrosion appears on their firearms, we will buy the weapon at full market value, no questions asked. We have never had a claim to date, and I think 5 years into it, in Hawaii, where we explain to take your dehumidifiers and dessicants and throw them away, we would have had claims if this system did not work.
Please understand, I am not selling this to anyone here, as no offers to do so will be made, but simply to explain the system. If you are interested in these products, you can do a keyword search on the web to find these products. The CORTEC web site is very informative about how their products work. With users like the US Military, NATO, Israeli Military, CocaCola, Skorsky, Boeing, NASA, SONY, GM, Harley Davidson, to name a few using CORTEC, and the testing by Naval Surface Warfare Center, Carderrock Division and US Army TACOM (tank and automotive command) with CarWell, the evidence is that this stuff works.
Break Free or CLP has problems in tropical environs. It breaks down into 2 components, and can cause gumming issues. I found out from Hawaii National Guard the issues they have with their weapons with CLP/Break Free. Their problem is compounded further in that they have to live with a bad system as to try to introduce change into the military with anything else has certain manufactures in a tail spin. I can't go further into this, as those that are familiar with how things work within the "System" I think will understand what I mean.
Reports from South West Asia on CLP is not very good, as problems with grit and adherence to the firemarms occurs. The fine grit works like valve lapping compounds, and with firearms, who wants to seat their recievers, over and over again?
CarWell is a thin film, single component inhibitor. CarWell does not break down, and saturates into the metals. Any excess can be wiped away, but the inhibitor lies between the anode and cathode of the metal, thus shutting off the flow of electrons across the pole, or in regular words, stopping the active corrosion cell.
Applying CarWell to my firemarms, S/42, P38, 1991A1 .45, and High Standard Match 22, has had no ill effect in performing over as many and more years thta we have been doing gun shows. I shoot maybe 3 to 4,000 rounds a year through these weapons. No not much maybe, but enough to see what could be problems or non-issues.
Lastly, CORTEC manufactures what is know as the "blue bag (TM)" for storage of metals up to 2 years. These are efficent, effective and reasonablly priced. Simply open the zip lock bag, drop your firearm into it (by the way, you could store an uncleaned firearm in this bag for up to 2 years with no ill effect)and purge the air by simply pressing the bag as flat as possible around the firearm, and zip closed. In minutes the VpCI inhibitors scavage and eliminate the oxygen, release inhibitors that are charged positive/negative in crystal form ( + - means these will attach to the opposite poles of the metal, the anode and cathode or + - of the metals) and rest on all the metal surfaces.
The best part is, these inhibitors get to all the metals, wherever oxygen was, these inhibitors can go.
If condensation should develop because of a partial seal, the VpCI crystal converts to a film, and will not allow the moisture to lie on the metal surface. The more humidity, the better the product performs.
These blue bags are not the Italian Bianchi or what ever they called them, as those bags are junk. The CORTEC bags are the true inhibiting bags, and they work wonderfully.
My 2 cents