Sao Paulo industrial belts move auto, capital equipment and fabricated metal under high ambient humidity for much of the year. Flash rust often starts in multi-day plant stores long before any ship. Residue sealed under film makes it worse. Export adds port dwell and multi-week ocean climate later. A global manufacturer specifies dry clean as a hard gate, multimetal VCI film for closed free volume, VCI stretch for unitised cartons, and aluminium barrier free volume with sized desiccant when ocean weeks apply after Brazilian port exit.
Los Angeles is Pacific CFS dwell. Houston is Gulf energy yards. Sao Paulo stays inland Brazilian industrial humidity so Western Hemisphere pages do not become doorway twins.
| Risk band | What happens | Control |
|---|---|---|
| Open free volume multi-day | Flash rust under ambient RH | Multimetal bag closed after dry clean |
| Dirty seal | Residue chemistry under film | Clean and dry gate before seal |
| Mixed metals in one kit | Selective staining | Multimetal grade matched to list |
| Ocean weeks after port | Container rain risk | Barrier free volume + desiccant with VCI |
Closed free volume for multi-day humid stores.
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Unitising bagged cartons between plants and warehouses.
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Only when ESD rules apply to modules in the set.
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With VCI and desiccant for multi-week export sealed life.
View Full SpecsLos Angeles is Pacific gateway CFS dwell. Houston is US Gulf energy humidity. Sao Paulo is Brazilian inland industrial humidity, multi-day plant stores and later Santos or other port exit when metal sails.
Open free volume under high ambient RH, dirty seal after process residue, and film-only packs on multi-week export legs.
Yes. High ambient humidity flash rusts bare metal in multi-day stores even far from the coast.
When sealed life includes multi-week ocean humidity after port exit.
Grade-tied MIL-PRF-22019E and NACE TM0208 documentation where applicable, SDS, ISO certificates and a method note covering humidity hold and clean gate.
No. BENZ is a global protective packaging manufacturer.
Only after part-level free volume exists. Stretch unitises; it does not replace sealed bags on critical bare metal.
Plant store plus warehouse days plus port dwell plus ocean weeks plus destination storage.
Share plant RH hold days, metal list, clean process and export path if any. The reply should name film form, clean gate and whether barrier plus desiccant are required.
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