Zinc Electroplating AC721, 25 kg, SANCHE®

Zinc electroplating is an electrochemical process that deposits a thin protective layer of zinc onto a metal substrate, usually steel or iron, to prevent rust and corrosion. The process can be done by using our zinc electrolytes . Our Zinc electrolyte is cost-effective metal protection, since Zinc is an affordable metal, making this process cheaper than many other coatings. Because zinc is more reactive than steel, it acts as a sacrificial barrier; it corrodes in place of the underlying metal, significantly extending the part's lifespan and can be used for automotive fasteners, brake components, household hardware, and electronic connectors.

Features:

1.) Ductile coatings with high brightness

2.) Outstanding thickness distribution even on complex-shaped parts

3.) Excellent throwing power allows customers to load more parts

4.) High productivity

5.) Sustainable processes such as cyanide and thiourea-free processes available

The common process steps:

1.) Preparation: Parts are cleaned in our detergents to remove oil and grease, followed by acid pickling to strip away rust or surface scales.

2.) Electro-Deposition: The part is submerged in our electrolyte bath containing dissolved zinc ions. A direct current (DC) is applied, making the part the cathode (negative) and a pure zinc block the anode (positive).

3.) Post-Treatment: Parts are often passivated or chromated to seal the pores and provide additional colors (yellow, clear/blue, or black) and corrosion resistance