ELECTRONIC SURFACE TREATMENT MATERIAL SUPPLIER

Corrosion Resistance: High sulfur nickel is often used as an intermediate layer in nickel plating systems. Its higher sulfur content serves as a corrosion trap, preventing corrosion from reaching the substrate or base material. This is particularly beneficial in multi-layer nickel systems, where it can significantly improve the overall corrosion resistance of the final product 

Electrochemical Performance: The presence of sulfur in high sulfur nickel increases the electrochemical potential difference between layers of nickel plating (e.g., between semi-bright and bright nickel). This potential difference is crucial for achieving better corrosion resistance, with optimal values typically ranging from 120-160 mV 

Layer Thickness and Application: The thickness of high sulfur nickel coatings is generally kept thin (around 1μm) to avoid adverse effects on performance. The plating time is usually between 2-3 minutes, ensuring that the coating is effective without being overly thick