Chloride Zinc Plating
For those needing rust protection on surfaces that are difficult to plate (such as steel castings and heat-treated steel), Gleco offers chloride zinc plating. Our newer chloride zinc plating delivers brilliant, easily leveled, ductile metal deposits when working on parts up to 120″ x 36″ x 72″.
Our Chloride Zinc Plating Process
Gleco Plating follows a typical zinc application process that includes:
- Surface preparation, cleaning the part to remove contaminants that may prevent optimum adhesion.
- Electrolyte solution preparation based on the finished product’s desired chemical and physical properties (including deposition speed, covering and throwing power, and thickness distribution).
- Procedure selection, rack plating for larger particles on parts that must remain stable or barrel plating on parts that are too small for the plating tank.
- Current introduction, to deposit zinc on the metal substrate (with the substrate serving as the cathode).
- Post-plating treatment, including rinsing to remove left-over contaminates, or passivating and sealing to provide additional corrosion protection.
Chloride Zinc Color Options
Film color will vary depending on the chromates and topcoats:
- Colorless Passivate (RoHS Compliant): Clear
- Colored Passivate (RoHS Compliant): Yellow, Black
- Colored Chromates (Non-RoHS Compliant): Yellow, Black, Olive Drab
Benefits of Chloride Zinc Plating
Chloride zinc plating offers a unique combination of benefits, including:
- Superior leveling and finish consistency
- Brilliant finishes
- Heat-treating/hardening capabilities
- Outstanding covering power
- Efficiency and cost-effectiveness
Unfortunately, two other factors might eliminate chloride zinc plating as a plating option. First, the solutions are corrosive, requiring corrosion-resistant equipment that drives up the cost. Second, because the throwing power isn’t as strong, there’s a chance for poor plate distribution, resulting in thickness buildup.
Chloride zinc plating is used by the automotive, aerospace, medical, defense, medical, and telecommunications industries to plate:
- Washers, nuts and bolts
- Pumps and cylinders
- Steering components and brake calipers
- Radio parts
- Cell phone towers