Shenzhen Alu Rapid Prototype Precision Co., Ltd.

Die-cast zinc does not rust in the traditional sense, as rust is specific to iron oxide formation on iron or steel. Zinc is highly corrosion-resistant because it forms a protective layer of zinc oxide or zinc carbonate when exposed to air or moisture, which shields the material from further degradation. However, in harsh environments like saltwater or acidic conditions, zinc can develop "white rust," a powdery white corrosion product, which is not the same as rust but indicates surface corrosion. Coatings like chromate or paint can enhance its resistance.