Yellow Zinc Plating
Yellow zinc plating refers to the color of the chromate that is applied after zinc has been deposited on to the surface of the part. Yellow chromate plating prevents the zinc from corroding and increases the overall protection of the finish.
This finish provides a rainbow or iridescent appearance with dominant yellow tones.
Yellow Zinc Chromate Considerations
Hexavalent Yellow Zinc
Hexavalent yellow zinc chromate is a traditional finish that was widely used due to its cost-effectiveness and excellent corrosion protection. Due to the European Union’s Restriction of Hazardous Substances Directive (RoHS), which banned the use of hexavalent chromium, the usage of yellow zinc has declined. It is no longer allowed in products sold by many large original equipment manufacturers (OEMs).
Trivalent Yellow Zinc
Trivalent Yellow Zinc plating is an alternative for companies in need of a RoHS-compliant yellow finish. Although it offers a similar iridescent yellow appearance, it can be more costly.
A high-performing alternative to Yellow Trivalent is High Corrosion Clear Trivalent. This passivate does not produce the same yellow appearance, but it is RoHS compliant and offers high salt spray performance. In some applications, it may be more cost-effective than Trivalent Yellow. This finish is a widely used alternative for applications that previously required yellow hexavalent chromate.
Gatto Offers Yellow Zinc Plating In The Following Finishes
| Zinc | Barrel | Rack | Salt Spray | Common Specifications |
|---|---|---|---|---|
| Yellow Hexavalent | X | X | Up to 96 Hrs | ASTM B 633 Type II |
| Yellow Trivalent | X | X | Up to 120 Hrs | ASTM B 633 Type VI |
| High Corrosion Clear Trivalent | X | X | Up to 120 Hrs | ASTM B 633 Type VI |
Benefits of Choosing Yellow Zinc
- High-performing corrosion protection
- Cost Effective
- Cosmetic Benefits
Why Choose Gatto
Gatto offers yellow zinc in both rack and barrel plating. We have been supplying this finish daily for over 40 years, so we have extensive experience in achieving a quality finish on a variety of parts. Gatto can process parts in yellow zinc up to 14.5 feet long.
Contact us or request a quote to learn more about how our industry-standard Yellow Zinc Chromate Plating services can enhance your industrial application today!
Quality is our number one priority. We have a full-time laboratory staff, so we are able to monitor our plating baths daily to ensure consistency and prevent defects. Every quote request is reviewed by our technical staff to ensure we are able to meet your parts specifications.
Let Us Know Your Part Requirements and Our Team Will Get Back To You.
Located in Chicago, we reach 65% of the U.S. in a day, lowering freight costs, reducing lead times, and enabling direct shipping to your customer.
With 210,000 sq. ft., we process full truckload orders efficiently, keeping parts organized and on schedule with dedicated staging, processing, and tracking.
Flaking, bleed-out, poor adhesion, we catch plating issues early before they turn into costly problems.
From fast quotes to clear answers, we simplify the plating process so you can focus on the rest of your project.
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