Metal Finishing Services in Menomonee Falls, WI
L & L Metal Finishing Services
At L & L Metal Finishing, we bring 30 years of experience and expertise to each and every part we treat. Located in the heart of Menomonee Falls, WI, we specialize in professional, high-performance metal finishing services that meet the demanding needs of industries like aerospace, automotive, electronics, and industrial manufacturing. So whether you’re processing high volumes of small parts or need corrosion protection for specialized components, our services are tailored to enhance durability, appearance, and performance.
We also proudly serve manufacturers across Menomonee Falls and the greater Milwaukee area, offering advanced finishing methods like black oxide coating, passivating, and barrel plating. And with industry-leading turnaround times and a reputation for quality, L & L Metal Finishing is your trusted partner for all things metal finishing.
Black Oxide Coating in Menomonee Falls, WI
Our black oxide coating in Menomonee Falls, WI, is one of our most in-demand services — and for good reason. Black oxide is a conversion coating that offers corrosion resistance, improves lubricity, and adds a sleek, non-reflective finish to ferrous metal parts. Unlike paint or plating, black oxide becomes part of the surface, preserving dimensions while offering long-term protection.
Benefits of Black Oxide Coating:
- Enhances part durability and corrosion resistance
- Reduces glare and light reflection
- Offers a clean, uniform appearance
- Cost-effective for large and small batches
Applications:
We often apply black oxide for parts used in aerospace, industrial tooling, and black oxide for automotive parts in Menomonee Falls, WI. From gears and brackets to fasteners and engine components, this finish delivers both function and visual appeal.
With an industry-leading turnaround — often within 24 hours — our black oxide service supports tight production schedules without sacrificing quality.
Passivating Stainless Steel for Long-Term Protection
Stainless steel is naturally corrosion-resistant, but machining and fabrication can leave behind contaminants that compromise performance. That’s where our passivation service comes in. Using industry-standard methods, we remove free iron and other residues from the surface, leaving a clean, passive layer that restores corrosion resistance.
Benefits of Passivating:
- Boosts resistance to rust and corrosion
- Meets industry standards like ASTM A967 and AMS 2700
- Helps components maintain performance in harsh environments
Applications:
Passivation is essential for stainless steel parts used in medical, aerospace, food processing, and chemical handling applications. Whether you’re preparing parts for a sterile environment or simply want to extend product lifespan, our process delivers reliable, high-quality results.
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Barrel Plating for Electronics and High-Volume Runs
When you need a cost-effective, efficient solution for finishing small parts in bulk, barrel plating is the answer. Our high-volume barrel plating in Menomonee Falls, WI is designed to handle fasteners, pins, connectors, and other small items that require a uniform, high-quality finish.
How Barrel Plating Works:
Parts are loaded into a rotating barrel and immersed in a plating solution. The tumbling motion ensures even coating without damaging delicate surfaces — making this method ideal for electronics and light industrial components.
Benefits of Barrel Plating:
- High efficiency for large quantities
- Consistent coating coverage
- Reduced labor costs compared to individual racking
Applications:
We often perform barrel plating for electronics in Menomonee Falls, WI, providing durable finishes for circuit components, hardware, and assemblies used across the tech and medical device industries.
Why Choose L & L Metal Finishing?
With nearly three decades in the metal finishing business, we’ve built a reputation on quality, consistency, and unbeatable turnaround. Our customers know us for more than just excellent results — they value our ability to deliver under pressure and meet urgent deadlines.
What Sets Us Apart:
- Industry-leading turnaround on black oxide
- Flexible batch sizes—from prototypes to high-volume runs
- Highly experienced, knowledgeable team
- Competitive pricing without compromise on quality
- Convenient Menomonee Falls location serving southeastern Wisconsin
We don’t just treat metal — we help our clients maintain their competitive edge with finishes that last, look great, and perform when it counts.
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Serving the Region’s Leading Industries
Here in Menomonee Falls, we’re part of a strong manufacturing network that supports aerospace, automotive, medical, and industrial equipment sectors. Our metal finishing services are built to keep pace with the region’s production needs — delivering fast, reliable finishes that ensure parts stand up to the harshest environments.
Every component we finish is treated with care, precision, and industry insight. Whether you’re processing 50 parts or 50,000, we’ll work with you to develop the right finish for your material, performance needs, and production timeline.
Frequently Asked Questions
How long does your black oxide process take?
Do you offer barrel plating for delicate electronic parts?
Can you meet industry compliance standards?
Do you serve clients outside of Menomonee Falls?
Is there a minimum order size?
Let’s Get Your Parts Finished—Fast and Right
At L & L Metal Finishing, we’re proud to serve Menomonee Falls and the surrounding region with high-quality metal finishing services built around your needs. So regardless of whether you need black oxide for automotive parts, barrel plating for electronics, or precision passivating for critical stainless components, we’re always ready to deliver. Our team also combines decades of hands-on experience with efficient processes and personal service to make your project a success from start to finish. So be sure to contact us today to request a quote or speak with a technician — we’re ready for you whenever you are.