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December 15th, 2014
 We’re well into December, and that means many readers will be putting guns in storage for a few months. It also means the weather is cold and damp — conditions that encourage corrosion. To ensure your rifles remain rust-free over the winter, we recommend some preventative measures. First clean the bore thoroughly, and remove carbon and gunk from the action areas. Slide a couple oiled patches down the bore and make sure that any bare metal parts (including sights, trigger guard, action, and bolt) are coated with some protective oil. We recommend Eezox, Boeshield T9, or CorrosionX. Eezox leaves a glossy dry film shield with excellent rust resistance. CorrosionX is more like a conventional oil, but with special anti-rust additives. Boeshield T9 leaves a slightly thicker, wax-like coating that blocks all kinds of oxidation, even on aluminum parts.
 Laminated Long-Term Storage Bags
Before you put your guns away for the winter, you may want to pack them in long-term storage bags. You can get superior protection with ZCORR long-term storage bags. Used by the USMC for arsenal storage, ZCORR bags are like the ultimate zip-lock baggie. They keep air and moisture out, and the interior is impregnated with corrosion inhibitors that block rust. The basic long-gun bags cost $12-$16, and have a velcro closure. The “Collectors Series” storage bags ($22-$30 for long-guns) feature a foil-adhesive closure that is 100% air and water tight. The deluxe preservation-grade ZCORRs, priced at $32-$39, can be vacuum-sealed for maximum protection — just hook up a vacuum cleaner to the special one-way valve. See photo below of rifle in ZCORR Vacuum storage bag.
Our friend Jim Sheppard of the Shooting Wire, has used ZCORR bags for years. He writes: “I’ve used ZCORR bags in the past, but the latest firearms versions are reusable, equally durable (they’re far tougher than a plastic bag) and available in sizes that will protect pistols, carbines and long rifles. Their Collector Series storage bags and Ammunition and Parts Pouches use zip closures to protect a variety of sizes of parts, ammo or whatever.”
 How ZCORR Bags Work
The laminated material used in ZCORR bags is puncture-resistant, tear-resistant, and will not harm any non-metal surfaces. Two key elements in bag’s laminate construction allow ZCORRs to block corrosion: 1) the foil barrier layer; and; 2) the VpCI-impreg-nated sealant layer.
The foil layer in ZCORR FSP Bags™ performs two tasks simultaneously; it keeps harmful corrosion causing elements out of the bag and keeps the corrosion inhibiting VpCI chemistry in the bag
The VpCI-impregnated inner layer provides the anti-corrosive properties. The VpCI chemistry impregnated in the interior layer migrates out of the plastic and forms an invisible gas inside of the bag. This gas is made up of VpCI molecules that are attracted to the interior and exterior metal surfaces of your firearm. The gas coats these metal surfaces with a one-molecule-thick layer of VpCI chemistry that stops corrosion before it can begin. This one-molecule-thick layer of VpCI chemistry dissipates off of the firearm when it is removed from the bag.
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June 14th, 2014
 Here’s a smart new product that monitors the temperature and humidity inside your gun safe — with a convenient LCD display unit located on the outside of the safe. You don’t need to string wires or cut a small hole in your safe — there are two separate components, one inside and one outside. The sensor unit (on the inside) communicates wirelessly with the display unit (on the outside).
The new GoldenRod Wireless Hygrometer was designed to display the temp/humidity in your safe without the need to open the safe. NOTE: the wireless LCD display can show BOTH in-vault AND in-room humidity and temperature levels. You can attach the display to the vault door with its built-in magnet, or simply place the display unit on top of the safe using the handy flip-out kickstand. The unit costs just $20.89 at Amazon.com.
GoldenRod Wireless Hygrometer Specifications and Features:
- Measures In-Vault and In-Room humidity from 20% to 95%.
- Measures In-Vault temperature range from 14°F to 122°F.
- Measures In-Room temperature range from -4°F to 158°F.
- Records Min/Max temperature and humidity history.
Product Tip from EdLongrange. We welcome reader submissions.
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May 30th, 2014
See Results of Anti-Corrosion Product Test in Video
YouTube Link: http://youtu.be/uOB5eCReAQY
What anti-corrosion products really fight rust effectively? You’ll hear many opinions, but what do actual field tests reveal? One rifle shooter, who posts on YouTube as BlueonGoldZ, wanted to separate myth (and marketing claims) from reality, so he completed his own long-term rust test using metal samples. First he used ordinary tap water spray, and then he did a second, longer-duration test with a salt-spray solution. Nine different products were tested: Break Free CLP, Corrosion-X, Frog Lube, M-Pro 7, Outers, Pro-Shot Zero Friction, Rem Oil, Slip 2000, and Tetra Gun Triple Action CLP.
BlueonGoldZ initially examined each product for its “beading” properties with a normal tap water spray. But the main test involved many multiple weeks of exposure after a “dense” salt-water spray. (No rust formed after two weeks tap water exposure, so the test was accelerated with salt-water exposure).
The clear winners in the test, as shown by the screen shot above, were Corrosion-X (Best), and Frog-Lube (Second Best). The photo shows the test samples two weeks after being sprayed with salt water. The results are pretty dramatic — you can see with your own eyes what happened. We think this is a very useful bit of real-world research.
Results from Similar Long-Term Salt Exposure Test
Unfortunately, BlueonGoldZ’s test did NOT include Eezox, which we have found to be extremely effective (on a par with Corrosion-X). In another long-term test of corrosion preventatives, the two best rust fighters were Eezox and Corrosion-X in that order. Since that test was completed, Corrosion-X, already an excellent product, has been enhanced. CLICK HERE for Long-Term Salt Exposure Test Report.
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June 28th, 2013
When evaluating firearm finishes, one should consider hardness, chemical resistance, lubricity, abrasion resistance, and color. However, none of these factors are as critical as corrosion protection. The average firearm owner deals with corrosion more than any other finish-related problem. Accordingly, when selecting an exterior finish for the metal components of your guns, you should look for a product with superior corrosion resistance. Thanks to Cerakote, we now have some science to help you make that decision….
How well do various firearm finishes resist corrosion?
Watch the video below to find out.
Eight Gun Finishes Tested — With Surprising Results
Eight (8) various finishes are tested, including Blueing, Cerakote, DuraCoat, FailZero, Ion Bond, KG Gun Kote, NiBX, and Phosphate (Parkerizing). Eight metal firearm components (each with a different finish) are placed into the salt chamber to see how long it takes for each finish to show initial signs of corrosion. To provide a baseline for comparison, a “naked” 416 stainless steel barrel was also placed inside the test chamber. The test was started, and for each coating, the time was recorded when corrosion started to appear. FYI, if you thought “stainless steel” can’t rust, think again. The stainless barrel sample (along with the blued metal sample) showed visible corrosion after just 24 hours!
After 24 Hours in Salt Chamber
After 48 Hours in Salt Chamber
After 172 Hours in Salt Chamber
Salt Chamber Testing — 5% Salt Concentration at 95°F
According to ASTM B117-03, the Corrosion Test provides a controlled corrosive environment which has been utilized to produce relative corrosion resistance information for specimens of metals and coated metals exposed in a given test chamber. The salt chamber is set to a temperature of 95 degrees Fahrenheit with a 5% salt concentration. Salt Chamber testing is used to draw a comparison between metals and finishes and does not correlate to a specific number of hours of real world use.
Story tip by EdLongrange. We welcome reader submissions.
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October 9th, 2011
Winter is coming and that means cold temps and wet weather. Heck it’s even raining in California this week. When it’s cold and damp out, you need to pro-actively guard against rust and corrosion on your valuable tools and firearms. As temperatures drop, moisture can condense from the air, causing guns to rust, even if they are stored in a safe.
We recommend that you use a proven corrosion inhibitor to protect your firearms during winter storage. We did extensive testing and recommend three products to combat rust: BoeShield T-9, Corrosion-X, and Eezox. These are all excellent products, but this Editor’s first choice is Eezox, because it cleans as well as protects, and because Eezox does not leave a sticky or waxy coating on your arms. Eezox is also ideal for fine, blued firearms. After 2-3 light applications it provides a dry protective finish that allows high polish blueing to shine through.
CLICK HERE for Anti-Corrosion Product Test Results
Eezox is available in small drip bottles, 4-oz. cans, and 4-, 6-, and 18-oz. aerosol spray cans. We typically apply Eezox to a patch from an aerosol can, then wipe down the firearm. Let the Eezox dry, then reapply. This will give you outstanding protection. Just make sure you wipe down ALL the metal surfaces, which may require removing the barreled action from the stock. We’ve seen examples of guns that rusted on the underside of the action because the owner had only bothered to wipe down the barrel and exposed section of the action. You can purchase Eezox from gun stores ($8.99 for 7 oz. can average price), or Warren Custom Outdoor.
Foam Cases Are Rust Magnets — Use Bore Stores
Just about the worst thing you can do in the winter (short of leaving your rifle outside in the rain) is to store firearms in tight, foam-padded cases. The foam in these cases actually collects and retains moisture from the air, acting as the perfect breeding ground for rust.
 Those plastic-shelled cases with foam interiors are for transport, not for long-term storage. Don’t repeat the mistake of a wealthy gun collector I know. He stored four valuable Colt Single Action Army (SAA) revolvers in individual foam-padded plastic cases, and locked these away in his gun safe. A year later, every one of his precious SAAs had rusted, some badly.
For storing long guns in your safe, we strongly recommend Bore Stores. These synthetic fleece gun sacks are coated with silicone and corrosion inhibitors. The thick fleece also protects your guns from nicks and scratches. Rifle-size Bore Stores can be purchased for $13.00 – $18.00 from Brownell’s, or MidwayUSA, or direct from the manufacturer Big Spring Enterprises, which can also craft custom sizes on request.
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September 1st, 2008
For storing fine firearms in a gunsafe or storage locker, we recommend Bore-Stores. These thick, synthetic fleece bags are treated with silicone and a special rust inhibitor to safeguard against rust and corrosion. Bore-Stores also cushion your rifles, protecting against nicks and dings while you’re moving your guns in and out of the safe.
Right now, through the end of September, MidwayUSA has most popular sizes of Bore-Store bags on sale. Bags for 4″ and 6″-barreled pistols are marked down from $5.89 to $4.99, and the 46″ Scoped rifle Bore-Store bag (item 570349) is just $9.99, reduced from $11.49. NOTE: Even if your rifle measures a bit longer, we have found this bag is large enough to fit a Benchrest-style rifle with up to 28″ barrel. For shorter guns with big scopes, we recommend the 42″ AR15 case (item 360601).
Bore-Stores are outstanding products, much better than the thin “gun socks” made by other companies. The fleece material is breathable, so it wicks away moisture from the firearm. By contrast, typical hard cases with “eggcrate” foam interiors attract and retain moisture — they can actually breed rust on your guns. Likewise, most zippered soft cases retain moisture.
GoldenRods on Sale Too
GoldenRods are electric heating elements that help prevent corrosion in your gunsafe by maintaining a constant temperature that is above the dewpoint. This prevents rust-breeding moisture from condensing on your guns. Both large and small GoldenRods are on sale this month at MidwayUSA, starting at $15.99 marked down from $19.99. The largest “gold” model (item 621013), which protects up to 300 cubic feet, is now $10.00 off, marked down to $29.99 from $39.99.
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August 25th, 2008
Some folks feel that they don’t have to worry about rust and corrosion on stainless steel barrels, actions, and other components. That’s not really true. “Stainless” is a bit of a misnomer. First, there are different types of stainless steel alloys, with different degrees of rust resistance. 300 series stainless is more corrosion resistant than the 416 stainless commonly used in barrels. The composition (by percentage weight) of 416 stainless is 0.15% carbon, 12-14% chromium and the rest iron. 416 stainless steel lacks the roughly 10% nickel content that makes the 300 series more corrosion resistant in atmospheric conditions.
Though some grades of stainless are more corrosion-resistent, ALL varieties of stainless steel can rust if they are not handled and stored properly. Forum reader Kells81 observed: “Wanna see some rusted stainless? Go to the big “C” brand store in Ft. Worth. Every stainless gun they have on the used gun rack is rusted.” Tom Easly of TRE Custom explains: “Sweat is very corrosive. Sweat and blood will rust many stainless steels. I hate to handle my guns or drip on them when I sweat. It really helps to just wipe them good with a wet rag, dry and wipe on a light coating of gun oil. I think most stainless barrels are made from type 416 stainless, and it is generally pretty corrosion resistant, but not when exposed to sweat, blood, or chlorates (corrosive priming), and some other electrolytes.”
Forum member Jacob, who is studying materials science at LSU, provides this technical information: “The basic resistance of stainless steel occurs because of its ability to form a protective coating on the metal surface. This coating is a ‘passive’ film which resists further ‘oxidation’ or rusting. The formation of this film is instantaneous in an oxidizing atmosphere such as air, water, or other fluids that contain oxygen. Once the layer has formed, we say that the metal has become ‘passivated’ and the oxidation or ‘rusting’ rate will slow down to less than 0.002″ per year (0.05 mm per year).
Unlike aluminum or silver, this passive film is invisible in stainless steel. It’s created when oxygen combines with the chrome in the stainless to form chrome oxide which is more commonly called ‘ceramic’. This protective oxide or ceramic coating is common to most corrosion resistant materials.
Halogen salts, especially chlorides, easily penetrate this passive film and will allow corrosive attack to occur. The halogens are easy to recognize because they end in the letters ‘ine’. Listed in order of their activity they are: fluorine, chlorine, bromine, iodine, astatine.
These are the same chemicals that will penetrate Teflon and cause trouble with Teflon coated or encapsulated o-rings and/ or similar coated materials. Chlorides are one of the most common elements in nature and if that isn’t bad enough, they’re also soluble, active ions. These provide the basis for electrolytes. The presence of electrolytic solutions can accelerate corrosion or chemical attack.”
 CONCLUSION: Stainless steel barrels and components won’t rust nearly as fast as blued steel, but you still have to take precautions — particularly removing sweat and corrosive salts from the barrel. Also, don’t let moisture build up inside or outside of the barrel.
We recommend wiping your barrels and actions with Eezox, or Corrosion-X after each use. These are both extremely effective rust-fighters that go on thin, without leaving a greasy residue. (Eezox leaves a clear finish, while Corrosion-X has a slightly waxy finish.) Also store your guns in Bore-Store synthetic bags when the guns go in the safe. Bore-Stores wick away moisture, and the synthetic fleece inner surface is treated with rust-fighting chemicals. Bore-Stores also protect your guns against dings and scratches. To discuss rust formation on stainless steel, visit this FORUM Thread.
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