Enhanced Corrosion Resistance with a Distinctive Yellow Finish

Metal Finishing Group provides Zinc Yellow Plating services to the SC 3 level of supplementary treatment, offering significantly enhanced corrosion protection combined with a vibrant yellow chromate finish for steel and iron components. This process applies a sacrificial zinc coating followed by a specialized yellow chromate conversion coating, precisely engineered for greater durability against environmental elements.

Zinc Yellow Plating to SC 3 is chosen when components require superior resistance against white corrosion (zinc oxidation) and red rust (iron oxidation) in more demanding environmental conditions. It also provides a distinct visual indicator. It is ideal for critical automotive parts, military equipment, and industrial applications where extended durability and clear visual identification are paramount. This robust coating provides reliable, long-lasting protection against aggressive environmental factors.

Our Zinc Yellow Plating – SC 3 Capabilities: Superior Protection and Visual Coding

We offer precise Zinc Yellow Plating services to SC 3 specifications, ensuring a uniform and high-quality deposit for your critical components.

  • Elevated Corrosion Protection: Engineered to provide significantly higher corrosion resistance than SC 1 or SC 2 finishes, extending the lifespan of parts exposed to harsher conditions.
  • Yellow Chromate Finish: Applies a rich, uniform iridescent yellow to gold chromate conversion coating over the zinc, delivering a distinct aesthetic and enhanced corrosion performance.
  • Sacrificial Protection: The zinc layer actively corrodes before the base metal, safeguarding steel and iron components from rust even under challenging conditions.
  • Good Electrical Conductivity: Maintains favorable electrical properties, suitable for many electrical components.
  • Visual Identification: The yellow color serves as a clear indicator for different parts, processes, or specifications, aiding in assembly and maintenance.
  • Rack and Barrel Plating: We accommodate both rack and barrel plating methods to suit various part sizes and production volumes.
  • Thickness Control: We achieve precise plating thicknesses to meet specific design and performance requirements.
  • In-house Quality Verification: We conduct rigorous salt spray testing to confirm compliance with SC 3 corrosion resistance requirements.

Properties of Zinc Yellow Plating – SC 3:

Zinc Yellow Plating to SC 3 imparts several key properties that enhance the performance and longevity of components:

  • Extended Corrosion Protection: Provides a substantial barrier against both white corrosion and red rust, capable of withstanding prolonged exposure in challenging environments.
  • Distinct Yellow Aesthetic: Offers a professional and appealing iridescent yellow to gold appearance, often used for color coding or brand recognition.
  • Cost-Effective High Performance: Delivers a reliable and economical solution for advanced corrosion requirements.
  • Reliable Electrical Conductivity: Maintains electrical continuity for functional components.
  • Excellent Paint Base: Can serve as an effective primer for subsequent organic coatings if a painted finish is required over enhanced corrosion protection.

Applicable Specifications We Adhere To:

Our Zinc Yellow Plating – SC 3 processes consistently meet or exceed crucial industry standards, ensuring the quality and performance of your components. We regularly process to:

  • ASTM B633 (Type II, SC 3): This specification defines electrodeposited coatings of zinc on iron and steel. Type II refers to zinc with a yellow chromate conversion coating. SC 3 designates a minimum corrosion resistance of 120 hours to white corrosion and 144 hours to red rust in a neutral salt spray test.
  • And various customer-specific requirements for enhanced corrosion protection.

Typical Zinc Yellow Plating – SC 3 Applications:

Zinc Yellow Plating to SC 3 is vital for numerous applications across various industries:

  • Automotive Industry: Used for fasteners, brake components, chassis parts, and critical under-hood components requiring enhanced corrosion resistance and visual coding.
  • Industrial Hardware: Protects machine components, tools, and brackets in environments with moderate to high humidity or chemical exposure, often with color coding for different grades or functions.
  • Fasteners: Enhances corrosion resistance and provides a uniform, identifiable yellow finish for bolts, nuts, and washers exposed to harsher conditions.
  • Electronic Components: Provides robust corrosion protection and conductivity for various electronic parts and enclosures that require color coding.
  • Construction: Used for components exposed to outdoor elements where both durability and color identification are important.

Why Choose Metal Finishing Group for Zinc Yellow Plating – SC 3?

Metal Finishing Group is a trusted partner for high-quality Zinc Yellow Plating to SC 3 specifications. Our commitment to precise application and rigorous quality control ensures a durable, highly corrosion-resistant, and aesthetically pleasing yellow finish for your steel and iron components. Partner with us for reliable metal finishing solutions that meet your demanding protection and performance requirements.