corroded metal pipe bursts, it can spill hundreds of thousands of gallons of
crude oil into a natural habitat.
this is an extreme example, it underscores the importance of keeping metal
parts rust-free. Rusted metal parts can cause excessive friction in machinery.
Corrosion and pitting weaken metal components to the point that they can become
unsafe to use.
an easy solution exists in the form of VCI technology. When you include it in
the packaging of metal products, you can have peace of mind that your product
will arrive at its destination in rust-free condition.
reading to learn how VCI technology works and why you should include it in your
How VCI Works
an acronym that can stand for any of these three phrases:
Volatile corrosion inhibitor
Vapor corrosion inhibitor
Vapor phase corrosion inhibitor
originally developed it in the early 20th century to protect metal in tropical
environments. It was first deployed after WWII to protect military equipment.
Over time, the technology has become safer and more effective than ever.
versions used nitrates and could only protect certain types of metal. In modern
times, VCI technology is more versatile and uses amine derivatives instead of
anti-rust products keep enclosed spaces rust-free by forming an invisible
barrier on metal surfaces.
explain how it works, let's review how corrosion happens in the first place.
electrochemical process that occurs when metal molecules react with
oxygen. For this to happen, a conducting solution of electrolytes is
necessary. Any kind of moisture can act as an electrolyte.
packaging involves vapors that disseminate throughout an enclosed space until
they reach an equilibrium. The vapor rests on metal surfaces and forms a thin
shield of micro-crystals.
these crystals come into contact with moisture, they dissolve and develop strong
ionic activity. The ions cause protective ions to absorb onto the metal surface
to form the protective film. This film repels the electrolytes we mentioned
earlier and diffuses oxygen from the surface, thus protecting the metal from
do not alter the metal's properties, nor do they affect the conductivity or
dimensional tolerances of the metal. They are a simple and easy method of
preventing damage to metal products.
How to Use VCI
types of metals VCI paper will protect include iron, steel, zinc, magnesium,
and copper. More generally, they protect ferrous and nonferrous metals, alloys,
and coupled metals.
packaging products are particularly useful for application with acidic packing
materials. These include the most common packing materials like corrugated
boxes and wooden pallets.
temperatures promote a stronger tendency towards
rusting. The good news is that VCI is responsive to temperature.
More shielding material evaporates onto the metal at high temperatures, thus
self-adjusting to the environment!
usually sold as a solid for ease of handling. Packaging personnel should wear
gloves while they handle the metal parts because it's important for the metal
to be clean and free of fingerprints.
only need to place it in the vicinity of the metal product, and the particles
will migrate to attach to the metal. It should be within 300 mm from the item.
are wrapping the product, the active side should face the metal.
comes to how much you should use, the rule of thumb is 1 m2 of VCI product for
every 1-2.5 m2 of metal surface. You should use at least 1 m2 of VCI product
for every 0.25 cubic meter of void space (the empty space inside the package).
packaging should be stored in a cool, dry place away from direct sunlight. It
was a shelf life of up to 5 years. This applies whether it's unused or in use
with a product that is in storage.
to keep in mind is that the vapor pressure in the space affects how well the
barrier maintains itself. A high-pressure environment can make the barrier less
stable. A low-pressure environment allows it to last longer and develop more
goal is to achieve a controlled and dependable volatilization, and that's why a
sealed environment is necessary for the most effective performance.
the metal item arrives at its destination, the customer can immediately put it
to use. There is no need to clean it, and the VCI molecules evaporate into the
air after a while.
Benefits of VCI
products eliminate the need for messy and time-consuming coatings or greasy
rust-preventatives. This reduces labor time and hazardous waste disposal fees
that result from the use of solvents to clean off petroleum-based solutions.
also useful in the case of intricate metal pieces on which it would be
difficult to apply a coating. This is particularly useful if you're packaging
metal parts like boilers or valves.
saves electricity by eliminating the need for a dehumidification system.
saves space, as you can easily adapt it to the size and shape of the item
technology works in multiple phases (liquid vapor, and interface). This makes
it effective whether the metal part is above or below the fluid level in oil
and gas applications.
takes a few hours to reach complete protection and no other processing is
necessary. This helps you save time and money, while you enjoy more thorough
and reliable protection than other metal preservation methods can offer.
open and reseal packages without affecting the corrosion protection, as long as
nobody touches the metal during the inspection.
most importantly, it is safe for people, it's recyclable, and it reduces waste
Where to Get VCI Products
technology is an elegant, modern, and efficient way of preventing rust on metal
products during shipping and storage. It can help you reduce losses and improve
your customer service by ensuring an undamaged product.
Drop Pack Secure a
line to inquire about their VCI options. They have a wide variety of packaging
and shipping solutions, as well as more than two decades of experience in the
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