For over 40 years, Valley Plating in Green Bay has been the trusted name in black oxide finishing for machine parts of all shapes and sizes. We work with everything from small screws to large shafts and bars up to 165 inches long. Our specialty is simple: we do black oxide — and we do it right.
Black oxide isn’t just a surface coating — it penetrates the metal, offering a clean, sleek look with virtually no buildup. Whether you’re looking to improve the appearance of your parts or help extend their usability, black oxide can make a difference. It provides a smooth, professional finish that enhances wear performance and makes your parts stand out.
With just three employees, our team is small but mighty. That means you’re not just another number — you’re working directly with people who care about your parts and your deadlines. Most jobs are turned around within one day, and even large orders are typically completed within 1–3 days.
Located just down the road from Lambeau Field, we serve clients throughout Green Bay, Appleton, Neenah, the UP, and even as far as Minnesota and Montana. Whether you’re walking in with a small order or shipping large parts from across the Midwest, we’re ready to help.
Monday – Friday
7:00 am – 3:30 pm
Saturday & Sunday
Closed
Have a project in mind or just need more details? Fill out the form below to request a quote for black oxide coating services. Whether it’s a small batch or oversized parts, we’re ready to help.
Our facility is equipped with large-capacity tanks measuring 48 inches wide, 48 inches deep, and 80 inches long, along with a heavy-duty crane system that allows us to handle up to 2,000 pounds of metal at a time. Whether you need black oxide coating for small screws or 165-inch bars, we’re set up to manage jobs of nearly any size quickly, safely, and efficiently.
Thanks to our efficient setup and experienced team, most jobs are turned around by the next business day, with even large or complex orders typically completed in 1–3 days.
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Lorem ipsum dolor sit amet consectetur adipiscing elit dolor"
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Lorem ipsum dolor sit amet consectetur adipiscing elit dolor"
"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.Lorem ipsum dolor sit amet consectetur adipiscing elit dolor"
We specialize in black oxide coating for steel, cast iron, and ductile iron parts. We’re happy to answer questions about your specific materials and help you determine if black oxide is the right fit.
Most projects can be finished within one business day. Larger orders may take 1–3 days depending on the size and quantity of parts. We pride ourselves on fast turnaround without sacrificing quality.
Black oxide gives metal parts a clean, sleek finish with virtually no dimensional buildup. It can help reduce wear between components, improve cosmetic appearance, and offer light protection for indoor applications.
