Export shipping exposes metal to temperature swings that cause condensation inside the packing, and to salt-laden air near the sea. Use a long-term rust preventive such as KG-8, KG-9 or KG-1, apply it to clean dry parts, seal the parts in plastic, and add desiccant where appropriate.
Why export is harder than storage
Containers can experience large day–night temperature differences, so water vapor condenses on cold metal. Voyages also last weeks to months.
Recommended approach
Choose the film by size and value of the part: KG-1 for large equipment and precision components, KG-8 for precision parts needing a dry surface, KG-9 for large heavy items. Pack in plastic, and keep the film intact during handling.
Frequently asked questions
How much extra protection does a plastic bag add?
For MOERY steel grades, bagging adds roughly one extra year (for example, KG-2: 1–2 years, or 2–3 years with plastic-bag packing).