Rusting of metal products may seem like a small matter, but in reality, it causes billions of dollars in losses to global businesses every year. The steel parts in your warehouse, precision instruments in your workshop, and automotive parts in transit may be quietly being corroded and eaten. Today, let's unveil a black technology that allows metals to have their own protective cover - gas-phase rust prevention technology. After reading it, you will find that dressing metals is so sophisticated.

1、 How scary is metal rusting? After calculating this account, you will understand
If you walk into any factory warehouse, you may see red brown rust on the surface of the metal parts piled up in the corners, and behind these rust stains are real losses of gold and silver. During the production, storage, and transportation of metals, as long as they come into contact with water vapor and oxygen in the air, they will quickly oxidize and rust, just like how people will freeze when exposed to cold winds.
According to industry data statistics, the direct economic losses caused by metal corrosion each year account for about 5% -8% of the total profits of the manufacturing industry. What's more troublesome is that rust not only affects the appearance, but also leads to a decrease in part accuracy, mechanical failures, and even safety accidents. For example, if the precision gears in a car engine rust, it may cause the power system to fail; The corrosion of metal components in aerospace equipment can have unimaginable consequences.

2、 Wearing protective clothing for metals? How is vapor phase rust prevention achieved
Since the root cause of rust is the contact between metal, water, and oxygen, the most direct way is to isolate them. But ordinary packaging materials can only provide physical barriers and will fail in high temperature and high humidity environments. And the gas-phase rust prevention technology can be called a "breathing invisible protective suit" for metals.
The core principle of gas-phase rust prevention is hidden in a mysterious substance called VCI. VCI stands for vapor phase corrosion inhibitor. When it is added to materials such as paper and film, it will automatically evaporate into a gas that is invisible to the naked eye at room temperature. These gases act like loyal guardians, actively adsorbing onto metal surfaces to form a protective layer only 1-2 molecules thick.

Although this protective layer is thin, it can act like an invisible shield, blocking out water vapor, oxygen, acid and alkali gases. What's even more amazing is that even if there are gaps or grooves in metal parts, these gases can penetrate and achieve "no dead corners protection". It's like coating the metal surface with an invisible film, which fundamentally destroys the conditions for rust to occur.