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Surface Finishing Service

Whether you need parts for industrial, automotive, or consumer applications, we offer a wide range of surface finishing services, including bead blasting, anodizing, powder coating, and more.

Surface Finishing Services with LangHe

LangHe's Surface Finishing Services

We provide complete surface finishing services for precision machined parts. If you require a custom finish not on this list, please get in touch.

Popular Finishes for Metal

As machined finish is a CNC machined part or parts that come right off the machine, just keep the parts as it is without any other surface finishing involved.

Type II anodize provides increased corrosion resistance and can be used as a base for paint and other finishes. Thickness ranges from .0002”-.0012”. Will conform to MIL-A-8625/MIL-PRF-8625 Type II, Class 2.

Color anodizing involves using dyes to affect the part’s surface color. Anodized colors cannot be matched to specific Pantone or RAL colors. Type II coatings are susceptible to wear and may bleach or fade under prolonged direct sunlight.

Type III hard coat anodize produces a thicker layer of standard anodizing, making it more durable and wear-resistant. It can be used as a base for paint and other finishes. Colors tend to come out slightly dark due to thickness. Anodized colors cannot be matched to specific Pantone or RAL colors. Thickness is generally 0.002” and will conform to MIL-A-8625/MIL-PRF-8625, Type III, Class 1/2.

Electroplating is a widely used electrochemical process that involves depositing a thin layer of metal onto the surface of a part to enhance its properties. The process not only improves the part’s appearance but also boosts its resistance to corrosion, wear, and tarnishing.

Powder coating is a highly effective finishing process that involves applying a dry powder to a metal surface and curing it with heat to form a hard, protective finish. This coating provides excellent durability, resistance to corrosion, and a high-quality aesthetic appearance.

Color Options for Aluminum Anodizing

Other Metal Finishes We Offer

Smooth machining is similar to an ‘As machined’ finish but with less visible machine marks. Parts are machined at a lower feed rate, with no hand polishing.

An electrochemical process that cleans steel parts to reduce corrosion and improve appearance by making the metal brighter. Removes about 0.0001”-0.0025” of the metal and conforms to ASTM B912-02.

Bead blasting cleans and evens out the surface of your custom parts, improving the functionality and cosmetic quality. It leaves a uniform matte or satin texture on machined parts by administering high-pressure glass beads on the components.

Sand Blasting helps create surface profiles and improves overall visual appearance. The process is used to create a uniform matte finish on parts. It can also be used to hide machine marks or remove small imperfections in parts before anodizing or other plating processes.

Black oxide is a type of conversion coating for ferrous materials, such as steel and stainless steel, which blackens the top layer of the material. It can be used to reduce reflection and glare, as well as provide some additional corrosion resistance without affecting part dimensions.

Chromate conversion coating is used to improve the corrosion resistance of aluminum and aluminum alloys while keeping their conductive properties. It is also applied as a base layer before priming and painting parts.

A metal plating of conductive materials to provide corrosion resistance. Zinc plating is standard among carbon steels and other alloys that can rust. Zinc plating conforms to the ASTM B633-15 service class I (SC1) specification. The typical plating coating thickness is 0.0002.” The finish results in a low silver shine.

Electroplating silver provides good corrosion resistance but easily tarnishes. Silver offers high solderability and electrical conductivity. Cosmetically it makes the part appear like silver. The coating thickness is about .00002”-.0003” and conforms to AMS QQ-S-365D.

Gold Plating provides good corrosion and tarnish resistance. Gold has low contact resistance, excellent conductivity, and solderability. Cosmetically it makes the part appear like gold. The default application specification is MIL-G-45204 & ASTM B488, CLASS 00, 0, OR 1 (THICKNESS 0.00002″ – 0.00005″): Pricing and lead time are based on Type I, II, or III, Grade A, B or C, and Class 00,0 or 1 (thickness of 0.00002″ to 0.00005″). Any gold plating thickness over 0.00005″ should require a manual quote.

Painting is a surface finishing process that uses compressed air to atomize and spray paint onto the surface of an object to form a uniform and smooth coating on metal, plastic, wood, and other materials to provide protection, decoration, or special functions (such as anti-corrosion, anti-rust, wear resistance, etc.).

Electroless nickel plating provides a uniform nickel coating, which offers protection from corrosion, oxidation, and wear on irregular surfaces. The finished part will appear brighter. Thickness starts at .0001” and conforms to ASTM-B733, TYPE IV, SC1, CLASS 1 (default), or AMS-2404 (formerly AMS-C-26074/MIL-C-26074) if specified. For any other nickel plating options, please select “Other” as the finish option and request a manual quote.

A colorless coating that improves corrosion resistance for 200 and 300 series and precipitation-hardened corrosion-resistant steels by removing free iron from the surface. The coating thickness is negligible at about .0000001”. Conforms to ASTM A967, AMS-QQ-P-35, MIL-STD-171, ASTM A380, or AMS 2700.

Heat treatment of metal parts to provide improved material properties. Includes heat treatment, annealing, and other heat treatments. Specify the treatment required in the ‘Notes’ section or an attached drawing. Conforms to ASTM B917 (aluminum alloys) or AMS-H-6875 / AMS 2759 (steels).

Brushing not only enhances the aesthetics of the metal surface but also improves the touch and anti-slip performance by hiding small scratches.

Brushing can produce a variety of texture effects, such as straight lines, random lines, threads, waves, and swirls. These textures not only have decorative effects but also provide functional benefits such as corrosion resistance and hiding mechanical marks and mold defects.

We offer vapor smoothing as a surface finish for 3D-printed parts. Used for a variety of aesthetic purposes, it reduces surface roughness, leaving a smooth, glossy texture that’s easy to clean.

This is a batch-based process that tumbles vibrating media to remove sharp edges and burrs on machined parts. Tumbling can remove machine marks on exterior surfaces creating a more uniform appearance. Parts over 8” may require a manual review.

Tin Plating
Copper Plating
Adhesive Primers/BR-127/CARC
Thin Film Lubricants
Zinc Phosphate Coatings
Precision/Ultrasonic/Oxygen Service Cleaning
Magnetic Particle Inspection
Fluorescent Penetrant Inspection
Ultrasonic Inspection
Cadmium Plating
Hard Chrome Plating
Finish Masking
And More!

Great Range of Finishing

Reliable Supplier

When you partner with us, you get more than just great products. We pride ourselves on being a reliable supplier, offering consistent, high-quality services.

Superior Quality

Our materials are sourced to meet the highest standards. Whether you're looking for strength, stiffness, or optimal weight, our high-quality materials ensure your parts perform perfectly in your specific application.

Reasonable Prices

We believe quality should come at a competitive price. That's why we offer reasonable rates across all our services, ensuring you get the best value for your investment without compromising on quality.

Instant Support

Have questions or concerns about materials or processes? Our customer support team is always available. Reach out via email or message, and we'll provide instant support to help you solve any issues.

Get your parts into production today!

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