Why Guns Rust (And How to Prevent it)

Published on May 14, 2024
Duration: 28:11

This guide details the causes and prevention of rust on firearms. It explains that rust is a chemical reaction between metal and oxygen, accelerated by moisture, salt, and acids. The video emphasizes controlling humidity through air conditioning, using corrosion-resistant alloys, and applying protective finishes and temporary treatments like oils and waxes. It provides specific recommendations for carried, hunted, and stored firearms, highlighting products like Gold Guard for long-term protection.

Quick Summary

Firearm rust is caused by oxidation, a chemical reaction between metal and oxygen, accelerated by moisture, salt, and contaminants like sweat. Controlling humidity with air conditioning, using corrosion-resistant alloys, and applying protective finishes are key. For daily carry firearms, frequent reapplication of oils and rust inhibitors is crucial, while long-term storage benefits from non-evaporating protectants like Gold Guard or Renaissance Wax.

Chapters

  1. 00:00What is Rust?
  2. 00:35Factors Causing Corrosion
  3. 01:00Humidity and Temperature
  4. 01:56Controlling Indoor Humidity
  5. 03:42Salt, Acid, and Contaminants
  6. 04:46Metal Alloys for Corrosion Resistance
  7. 05:494150 Chrome Moly Vanadium Steel
  8. 06:15Mouser Bolts Example
  9. 07:06Stainless Steel
  10. 07:35Surface Finishes
  11. 07:51Painting, Bluing, Parkerizing, etc.
  12. 09:05Cerakote, Powder Coating, Plating
  13. 10:57Most Controllable Protection
  14. 11:11Temporary Surface Treatments
  15. 12:16Protecting Carry Guns
  16. 15:14Hunting & Sport Shooting Guns
  17. 16:01Long-Term Storage
  18. 17:32Gold Guard Product Review
  19. 19:51Gold Guard Usage Recommendations
  20. 21:08Home Defense Guns
  21. 22:27Display Guns (Wall Hangers)
  22. 23:25Long-Term Storage (No Reapplication)
  23. 25:05Product Efficacy and Testing
  24. 26:29Nano Arms Chemistry Company

Frequently Asked Questions

What are the primary causes of rust on firearms?

The primary causes of rust on firearms are moisture in the air (humidity), direct contact with water, and contamination from substances like salt spray, acidic rain, sweat, skin oils, and blood. These elements react with the metal, typically steel, in a process called oxidation.

How does temperature affect firearm rust?

Temperature significantly impacts how much moisture the air can hold. Hotter air can hold much more water vapor than cooler air. This means a lower relative humidity percentage at a higher temperature can contain the same amount of moisture as 100% humidity at a lower temperature, accelerating corrosion.

What types of metal alloys are more resistant to rust on firearms?

Firearms made with steel alloys containing chromium and nickel, such as 4150 Chrome Moly Vanadium or various stainless steels, are significantly more resistant to rust than those made from pure iron or basic carbon steel due to the protective properties of these added elements.

What are the best methods for long-term firearm storage to prevent rust?

For long-term storage, use non-evaporating protectants like grease, cosmoline, or specialized waxes such as Gold Guard or Renaissance Wax. These create a durable barrier against moisture and air. Periodically check stored firearms and reapply protectants as needed, especially if they are not in a climate-controlled environment.

How often should I apply rust inhibitors to a firearm I carry daily?

Firearms carried daily require the most frequent protection. You should reapply protective oils or rust inhibitors at least weekly, and potentially more often, especially in humid conditions or if exposed to significant sweat. Holster wear and environmental exposure degrade protective coatings rapidly.

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