Enhanced Corrosion Protection with a Distinctive Yellow Finish

Metal Finishing Group provides Zinc Yellow Plating services, applying a protective zinc coating followed by a vibrant yellow chromate conversion coating. This process creates a uniform, iridescent yellow to gold finish on steel and iron components, offering significantly enhanced sacrificial corrosion resistance and a recognizable aesthetic.

Zinc Yellow plating is chosen when components require excellent protection against rust, a distinct colored finish for identification or safety, and good electrical conductivity. It is ideal for automotive fasteners, electrical components, and industrial hardware where both robust performance and a specific visual indicator are crucial. This durable coating provides reliable, long-lasting protection against rust and environmental elements.

Our Zinc Yellow Plating Capabilities: Durability and Identification

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

  • Sacrificial Corrosion Protection: The zinc layer actively corrodes before the base metal, safeguarding steel and iron components from rust.
  • Yellow Chromate Finish (Type II): Applies an iridescent yellow to gold chromate conversion coating over the zinc, providing a distinct aesthetic and enhanced corrosion performance. This is typically referred to as Type II per specifications.
  • Supplementary Treatment Levels: We offer treatments to meet various corrosion resistance requirements, commonly referred to as SC 1 (moderate corrosion resistance) and SC 2 (improved corrosion resistance), as defined by applicable standards. Higher levels (SC 3, SC 4) are available on dedicated pages.
  • 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.
  • 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 salt spray testing to confirm the corrosion resistance performance of the coated parts.

Properties of Zinc Yellow Plating:

Zinc Yellow plating imparts several key properties that enhance the performance and longevity of components:

  • Excellent Corrosion Resistance: The combination of zinc and yellow chromate provides robust protection against rust and environmental factors, often offering superior resistance compared to clear chromates at the same zinc thickness.
  • Distinct Yellow Aesthetic: Offers a professional and appealing iridescent yellow to gold appearance, often used for color coding or brand recognition.
  • Cost-Effective Protection: Provides a reliable and economical solution for enhancing the durability of ferrous metals.
  • Good Adhesion for Topcoats: Can serve as a base for subsequent organic coatings if desired, though frequently used as a final finish.
  • Reliable Electrical Conductivity: Maintains the ability for current flow, important for electrical assemblies.

Applicable Specifications We Adhere To:

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

  • ASTM B633 (Type II): This specification defines electrodeposited coatings of zinc on iron and steel. Type II refers to zinc with a yellow chromate conversion coating. We offer supplementary corrosion resistance levels such as:
    • SC 1: A specific level of corrosion resistance, typically for mild exposure (e.g., minimum 72 hours to white corrosion).
    • SC 2: An improved level of corrosion resistance, suitable for more demanding environments (e.g., minimum 96 hours to white corrosion).
  • And various customer-specific requirements for enhanced corrosion protection.

Typical Zinc Yellow Plating Applications:

Zinc Yellow plating is vital for numerous applications across various industries:

  • Automotive Industry: Used for fasteners, brake components, chassis parts, and various under-hood components where both corrosion protection and visual identification are needed.
  • Industrial Hardware: Protects machine components, tools, and brackets from rust, 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.
  • Electronic Components: Provides robust corrosion protection and conductivity for various electronic parts and enclosures.
  • Construction: Used for components exposed to outdoor elements where appearance and durability are important.

Why Choose Metal Finishing Group for Zinc Yellow Plating?

Metal Finishing Group is a trusted partner for high-quality Zinc Yellow plating. 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 enhance the longevity, performance, and visual management of your parts.