During transportation, color-coated steel sheets are subject to various challenges, including jolts, impacts, environmental exposure, and uneven loading. Prolonged exposure to high temperatures, high humidity, intense light, or dust can lead to the aging, fading, or corrosion of the coating, and may also compromise the flatness of the sheets. Proper packaging and systematic storage management are essential for ensuring product quality.
Packaging Requirements
To mitigate risks during transit, color-coated steel sheets require specialized packaging. A typical composite packaging configuration includes an outer layer consisting of anti-rust paper (with the smooth side facing outward and the textured side inward) and waterproof paper, secured with reinforced steel strapping. The inner protection comprises multiple layers, such as composite printed panels (PE combined with wood fiberboard), PE plastic side protectors, EPE foam (pearl cotton), galvanized inner and outer edge protectors (rings), galvanized locking clips, plastic spacers, and plastic film. This sealed packaging system ensures that the entire stack remains stable and undeformed during long-distance transport; it also acts as a barrier against external moisture, preventing issues such as blistering or fading of the coating caused by dampness.
