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June 28th, 2013

Firearm Finish Comparison Testing in Salt Chamber

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
Cerakote salt chamber corrosion test

After 48 Hours in Salt Chamber
Cerakote salt chamber corrosion test

After 172 Hours in Salt Chamber
Cerakote salt chamber corrosion test

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.

Cerakote salt chamber corrosion test

Story tip by EdLongrange. We welcome reader submissions.
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June 28th, 2013

Magpul Gives Away 1500 Magazines in Colorado Protest

On Saturday, June 29, 2013, just two days before Colorado’s new anti-gun laws go into effect, Magpul Industries will give away 1,500 30-rd AR-platform magazines. Magnul is giving away the magazines as a protest against the new legislation. The give-away will take place at the “Farewell to Arms” event to be held Saturday in Glendale, Colorado. The event is being sponsored by Free Colorado, a non-profit organization advocating for the rights of gun owners. New Colorado laws take effect on July 1st limiting magazine capacity to 15 rounds. Magpul announced: Magpul give-awayAttention Colorado
Come on out and join the festivities at Infinity Park in Glendale, CO, this Saturday, June 29, celebrating FREEDOM on the last weekend before the unconstitutional mag ban takes effect, and get your last shot at purchasing PMAGs. We’ll be there, and we’ve ponied up a LOT of PMAGs. The first 1500 attendees through the gate over the age of 18 will receive a free Magpul Gen M2 MOE 30rd magazine featuring either the Free Colorado or Boulder Airlift design, courtesy of Magpul Industries Corp. Proceeds from mag sales go towards the legislative and legal fight for Second Amendment rights in CO. There will be food, live music, and a helo-borne aerial delivery of PMAGs. Get tickets and pre-purchase PMAGs at: Magpul give-away

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