Hard Anodizing

Hard Anodizing
is a specialized anodizing process performed under low-temperature and high current density conditions, forming a thick, dense, and high-hardness oxide layer on aluminum and aluminum alloys. The anodic layer is integrally bonded to the substrate, significantly improving wear resistance, corrosion resistance, and service life in demanding environments.

At Leedo Technology, we tailor the hard anodizing process to different aluminum alloys and application requirements by precisely controlling voltage, current density, electrolyte formulation, bath temperature, and processing time. This ensures uniform coating thickness, stable hardness, and consistent performance suitable for high-functionality components.