ZEXEED has a slow plating layer corrosion rate, and there is a lasting barrier effect of the protective membrane formed on the plating layer, so it is about ten times more corrosion resistant than hot-dip galvanized steel(GI), and about two times more corrosion resistant than conventional highly corrosion-resistant galvanized steel.
| Testing conditions | JASO M609-91 (8 hours/cycle) |
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ZEXEED is superior to other galvanized steel in terms of corrosion resistance at the cut end face.
*The red rust area ratio may vary depending on the degree of plating loss at the end face.
| Testing conditions | JASO M609-91 (8 hours/cycle) |
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| Test period : Up to 180 cycles Test specimen size : 100 x 50 x 2.3 mm (Aside from the post-plating, the top, bottom, and right sides are also coated with paint) |
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ZEXEED shows high corrosion resistance to processing such as punching metal.
The edge of cutting by punching is protected by a protective film formed by elution of the plating layer.
*In outdoor exposure, red rust may occur depending on the thickness and opening ratio, but it will be covered by the protective film over time.
| Test method | Punching and press molding (Hole diameter: φ20mm, Opening ratio: 30%) |
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| Testing conditions | JASO M609-91 (8 hours/cycle) |
ZEXEED shows superior corrosion resistance in droplet environment, even with less than half weight of plate coating of zinc hot dip galvanizing (JIS H 8641).
| Components of the test liquid | Cl -： 10ppm NO3-： 20ppm SO42-： 40ppm |
|---|---|
| PH | 5±0.2 |
