GMETALS

Surface Treatments Selection Guide

GMetals can do various surface treatments, including electroplating, anodizing, polishing, and powder coating, ensuring enhanced durability, corrosion resistance, and a premium finish for diverse industrial applications. Custom finishes are available to meet specific requirements.

Contact us if the surface treatment you need not show here

custom cnc machining parts with black oxidation oxide finish surface treatment
Black Oxidation
Black oxidation is a chemical treatment that forms a thin, black oxide layer on the metal surface. This finish enhances corrosion resistance and reduces light reflection. Commonly applied to steel parts, aluminum parts. It provides a moderate level of rust protection while maintaining the metal’s original dimensions.
cnc turning milling custom aluminum parts with colorful anodized finish
colorful anodized
Colorful anodizing is an electrochemical process that adds an oxide layer to aluminum, which can be dyed in various colors. This treatment not only improves corrosion and wear resistance but also enhances aesthetic appeal. It’s popular in industries where both functionality and visual impact are important.
sheet metal stamping part with Chrome Plating finsih
Chrome Plating
Chrome plating involves electroplating a thin layer of chromium onto a metal surface. It provides excellent hardness, corrosion resistance, and a high-gloss, mirror-like finish. This treatment is widely used for automotive parts, tools, and decorative components, enhancing both durability and appearance.
custom spring pogo pin with gold plating plated finish surface treatment
Gold Plating
Gold plating deposits a thin layer of gold onto metal surfaces via electroplating. This finish offers excellent electrical conductivity, corrosion resistance, and an attractive appearance. It is often used in electronics, connectors, and luxury items where aesthetics and performance are prioritized.
custom cnc machining parts with nickel plating finish
Nickel Plating
Nickel plating coats a metal surface with a thin layer of nickel through electroplating. This treatment enhances corrosion resistance, hardness, and wear resistance while providing a smooth, shiny appearance. It’s frequently used for mechanical parts, connectors, and decorative pieces.
stainless steel plate with polish finish surface treatment
Polish Finish
Polishing is a mechanical process that smooths and shines the metal surface by using abrasive materials. This treatment removes imperfections, giving the metal a reflective, high-gloss finish. It is used for decorative purposes and to improve the hygiene of parts in food or medical industries.
custom cnc machining brass copper connector banana spring terminals with silver plating finish
Silver Plating
Silver plating involves coating metal with a thin layer of silver through electroplating. This enhances electrical conductivity, reduces contact resistance, and provides an appealing, lustrous finish. It is ideal for electrical connectors, circuit components, and decorative applications.
Power coating finish surface treatment
Power Coating
Powder coating is a dry finishing process where a powder is electrostatically applied and cured under heat to form a hard, durable layer. It offers excellent resistance to corrosion, chipping, and fading while providing a smooth, uniform appearance in a variety of colors.
custom cnc machining bolts internal hex with zinc plating plated finish
Galvanize
Galvanizing is a process where a layer of zinc is applied to steel or iron to protect against rust and corrosion. The zinc layer acts as a sacrificial barrier, preventing the underlying metal from corroding. This cost-effective treatment is commonly used for outdoor structures and construction.
stainless steel plate material with brush Finish surface treatment
Brush Finish
A brushed finish involves using an abrasive tool to create fine lines on the metal surface, giving it a matte, textured appearance. This treatment hides minor imperfections and provides an aesthetically pleasing, modern look, making it popular for kitchen appliances and architectural elements.
custom cnc machining turning knob parts with knurling finish surface
Knurling Finish
Knurling is a machining process that creates a pattern of ridges or grooves on the metal surface. This finish provides better grip and tactile feedback, making it ideal for handles, tools, and parts that require enhanced handling. It also adds a decorative texture.
square parts plate with PVD and VCD Finish
PVD and CVD Coated Finish
PVD (Physical Vapor Deposition) and CVD (Chemical Vapor Deposition) are coating processes that deposit thin, hard layers on metal surfaces. These coatings improve wear resistance, corrosion protection, and surface hardness while offering a sleek, decorative finish. They’re often used for cutting tools and luxury items.
sheet metal parts with Electrophoretic Coating surface treatment finish
E- Coating/Electrophoretic Coating

Electrophoretic coating (e-coating) is an electrochemical process that applies a uniform, protective layer of paint to metal surfaces. It offers excellent corrosion resistance, even on complex shapes, and provides a smooth, durable finish. This method is commonly used in automotive and appliance manufacturing.

sheet metal parts with Painting surface treatment finish
Painting

Painting involves applying a liquid paint layer to metal surfaces for color, protection, and aesthetic appeal. It can be air-dried or baked for durability. While it’s a cost-effective method, painting provides moderate protection against corrosion and is suitable for indoor and decorative use.

sheet metal bracket parts with passivation finish surface treatment
Passivation

Passivation is a chemical process that removes free iron and contaminants from stainless steel, enhancing its corrosion resistance. This treatment forms a passive oxide layer on the surface, preventing further oxidation and maintaining the metal’s natural appearance. It’s commonly used for medical and food-grade equipment.

custom aluminum sheet metal parts with Sandblasting finish surface treatment
Sandblasting

Sandblasting uses high-pressure air to propel abrasive particles onto a metal surface. This process removes rust, paint, and imperfections, preparing the surface for further treatment. It creates a rough texture that improves paint or coating adhesion and provides a uniform, matte finish.

 

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GMETALS

GMetal is professional for high quality hardware and plastic machining projects, include CNC machining service and sheet metal fabrication service, gears, etc. We provide customizable solutions for customers from all over the world

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+86-13480494185

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[email protected]

Location

No 4, Jiamei Road, Xinan district, Changan town, Dongguan city, China

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