Cross Border Tooling Ownership Verification during Foreign Moulding Plant Insolvency
Foreign tooling ownership relies on engraved asset tags, distinct bailment agreements, and prompt insolvency receiver filings to prevent asset liquidation.
VCI Oil Coating
Meaning
Volatile corrosion inhibitors dissolved in a mineral oil base form a protective molecular layer on metallic surfaces during storage or transport. Applying a vci oil coating is a standard procedure for protecting expensive injection molds from rust when they are not in the press. The chemicals in the oil slowly evaporate to create a corrosion-resistant atmosphere inside the tool crate.
Chemical Barrier
Protective molecules migrate from the liquid phase to bond with the metal surface at the atomic level. This vci oil coating stops the electrochemical reaction between the steel and moisture in the air. Unlike thick greases, these thin oils can reach into deep ribs and narrow ejector pin holes where moisture often hides.
Long-term Storage
Molds shipped across the ocean are frequently exposed to salty, humid air that can ruin a polished surface in days. A vci oil coating provides months of protection without the need for airtight packaging. When the tool arrives at its destination, the coating remains effective even if the outer plastic wrap is punctured.
Cleanliness Requirement
Production cannot begin until the oily residue is completely removed from the cavity surfaces. If a vci oil coating is left on the tool, it will contaminate the first shots of plastic, leading to surface splay or poor adhesion of paints and labels. Molders typically use specialized solvent sprays or ultrasonic baths to ensure the steel is perfectly clean before the first shot is injected.
Any leftover inhibitor can also react with certain polymers like polycarbonate, causing stress cracking or discoloration. Thorough degreasing must include the back plates and water channels to prevent oil from leaking onto the part during the molding cycle. A disciplined cleaning routine ensures that the protective benefits of the oil do not become a source of defects on the production floor.