Most Common Mistakes to be avoided to Prevent Corrosion on Metal Parts

Keep It Clean: It is of utmost importance to keep your metalworking fluids and other solutions clean. This will reduce and eliminate microscopic metal particles which get deposited on the metal surface. You may also refer to these particles as “dirt” or “grime”. If not properly washed, they can form a galvanic corrosion cell and rust will occur underneath the dirt.    Clean Metal Working Fluids

Adjust the pH: It is very important to maintain the pH of cleaning solutions at a minimum of 9.0. With this, it will help to protect ferrous metals from Corrosion. In the case of non-ferrous metals parts such as brass and bronze, a pH of 7 – 7.5 must be maintained.
pH of Water

Check on Water: In case you are using water for cleaning fluids or cutting oils, always use de-ionized or distilled water.

Check Water

Dry your parts: The metallic parts should be placed preferably in a wire basket to dry from Vibratory action. Also, forced air can be given to dry parts more quickly. Never stack the parts on top of each other until completely dry. The metallic parts can easily corrode if they are stacked on top of the other or in the event when contacting each other. This is caused by the fluid acting as an electrolyte and forming galvanic cells between two parts.

Cover the Components: Keep metallic components away from any industrial air contaminants like exhaust from Forklift trucks and heat treatment areas, as by-products from heat treating are corrosive to metal. It is highly recommended to cover all metallic components with BENZ VCI Paper or BENZ VCI Poly Bags to protect them from oxygen, moisture, and contaminants in the factory air.


Keep the Climate under control: It is highly recommended to keep relative humidity and temperature constant in manufacturing and shipping areas. Any Fluctuations in Temperature & Humidity (by a mere 10ºC) can trigger condensation and thus accelerate corrosion. Therefore, maintain lower temperatures and lower humidity levels by installing climate controls, air conditioning, and/or dehumidifiers. Also, be sure to place metal parts into BENZ VCI Bags or BENZ VCI Paper as quickly as possible.

Wear Gloves while packaging: Packaging Personnel should always wear hand gloves while handling metallic components. This is because chlorides and acid are present on human hands which can initiate rust before packaging. Also, ensure the components are clean and free of fingerprints before final packaging in the VCI Bags.

No contact with wood: Be certain that metallic components have no direct contact with hygroscopic materials like corrugated boxes, wooden pallets, or untreated paper. A barrier has to be created between metallic components and any kind of hygroscopic materials with VCI Bags, VCI Sheets, or VCI Paper.


Use Manufacturer’s Instructions: Always comply with the manufacturer’s direction while the use of VCI Products. Consult with a professional like BENZ Packaging to get expert advice to design packaging for your products and assist you with the implementation of VCI Products as per guidelines.

And Finally, package metal parts in BENZ Packaging VCI Paper or VCI Poly Bags to keep parts corrosion-free for years.

BENZ Packaging VCI Bags


Tags: VCI Paper, VCI Film, BENZ VCI Paper, BENZ VCI Poly Bags, Desiccants, Packaging Design, VCI Packaging Materials, Moisture, Corrosion, Metalworking Fluids, Temperature, Humidity, hygroscopic materials, corrosion-free