Surface Treatments for Aluminum Extrusion Profiles
Surface treatments include anodizing, sandblasting, powder coating, spraying, electroplating, electrophoresis, sandblasting, deburring and polishing. According to your needs, we can adjust the thickness of the oxide film and the thickness of the sprayed powder.
Start A New Quote
STEP | STP | SLDPRT | IPT | PRT | SAT files
All uploads are secure and confidential.
Professional Aluminum Surface Treatment Team
Zheng Ji Aluminum has its own surface treatment workshops, which can provide a variety of surface treatment options such as anodizing sandblasting, spraying, electroplating, etc. The entire production process has precise control over the surface treatment effect.
Compared with traditional oxidation factories, we have CNC and extrusion workshops. In addition to surface treatment, we can also perform extrusion and aluminum CNC processing production to provide you with full service.




Customized surfaces
Provide various surface treatment options such as anodizing, sandblasting, powder coating, spraying, electroplating, electrophoresis, sandblasting, polishing, etc.
Quality Control
Ensure the surface effect and quality of the final product, and strictly follow the surface treatment of customer standards
Professional Staff
Every employee of the surface treatment production line has received professional training to strictly control the quality of each production link.
Aluminum Surface Treatment Options
here are many options for aluminum surface treatment. If your project requires a surface treatment not listed, please contact us.
Anodizing
Enhances corrosion resistance, wear resistance, surface hardness, and can achieve a variety of color surface effects.
Powder Coating
Environmentally friendly and pollution-free, durable coating, and a variety of colors and textures
Spray Painting
Durable, smooth and beautiful coating, with a variety of color options
Electroplating
Improves the wear resistance, corrosion resistance and decorativeness of aluminum
Electrophoresis
Uniform coating, strong adhesion, good corrosion resistance
Sandblasting
Increases surface adhesion and eliminates surface defects
Polishing
Improves surface brightness and beauty
Aluminum surface treatment workshop
- Pretreatment Systems: Include degreasing, rinsing, and surface conditioning for optimal performance.
- Anodizing line: A thick aluminum oxide protective film is generated on the aluminum surface through an electrochemical reaction
- Powder spraying line: Powder coating is sprayed onto the aluminum surface through electrostatic spraying, and then cured into a film through heat treatment.
- Paint spraying line: Liquid paint is sprayed onto the aluminum surface and cured into a film.
- Electroplating line: A layer of metal or alloy coating, such as nickel, chromium, copper, etc., is deposited on the aluminum surface through an electrolytic reaction.
- Sandblasting line: The aluminum surface is treated by high-speed spraying of sand particles to form a rough or matte surface.
- Polishing line: The fine protrusions on the aluminum surface are removed by mechanical, chemical, or electrochemical methods to make the surface smooth and flat.






Process Control of Aluminum Surface Treatment
Our quality team strictly monitors the entire manufacturing process of surface treatment, from raw materials to surface processing, to ensure that the products meet the needs of customers.
Pretreatment
Ensure the surface is clean, and remove impurities and oxides
Film Thickness
Ensure the film thickness on the surface meets the requirements and ensures uniformity
Appearance Quality
Ensure the surface is smooth without scratches, dents, and uniform brightness
Color Difference Detection
Ensure the surface color meets the requirements and ensure uniform color
Industry applications of aluminum surface treatment
Zheng Ji aluminum surface tratment services cover a wide range of industries from construction to industry, ensuring that the unique needs of each industry are precisely met.
Architecture
Product
Aerospace
Electronic
Furniture
Auto
Aluminum Extrusion Blog
Benefits of Hard Anodizing of Aluminum
Hard anodizing has the benefits of hardness and wear resistance, corrosion resistance, insulation performance, high temperature resistance, and non-toxicity.
Read MoreThe Ultimate Guide to Surface Treatment of Aluminum
Surface treatment is essential in aluminum processing as it improves the material’s durability, corrosion resistance, aesthetics, and other functional properties. […]
Read MoreSurface Treatment for Aluminum CNC Machined Parts
Aluminum CNC machined parts are used across various industries, including aerospace, automotive, electronics, and construction, due to aluminum’s lightweight, corrosion […]
Read MorePrice Analysis of Aluminum Spraying Treatment
Aluminum spraying treatment, also known as thermal spray coating, is a widely used technique in various industries to enhance the […]
Read MoreZheng Ji Aluminum Surface Treatment FAQ
1. What is the surface thickness for each surface treatment?
Anodizing: film thickness is 5-25 µm (international standard)
Powder coating: architectural and industrial use: film thickness is 50-150 µm.
Automobiles and home appliances: film thickness is 60-120µm.
Anodizing, powder coating, and spraying are more common surface treatment methods
Electrophoresis and electroplating will cost more and the surface effect will be better
For special requirements on surface thickness, please feel free to contact us
2.How do I choose the most suitable surface treatment process for my needs?
It depends on the application environment, aesthetic requirements, durability, Profile complexity, and budget. For instance, if you need high corrosion resistance and a decorative finish, anodizing might be the best choice. If you require a variety of colors and a thicker protective layer, powder coating is a good option. Feel free to contact us and we will provide some suggestions.
3.What colors can your surface treatments achieve?
Zhengji offers various color options to meet various customer needs. Our powder coating and anodizing services provide a variety of standard colors, including black, white, silver, gold, blue, green, and so on. For custom or special colors, please feel free to contact us.
4.Can surface-treated aluminum products maintain their color and gloss over time?
Zhengji offers a wide range of surface treatment services to meet various customer needs. The aluminum profiles we process typically retain their color and gloss for a long time. High-quality anodizing, powder coating, and other surface treatments not only provide excellent aesthetic results but also offer good corrosion resistance and weatherability.
5.Does surface treatment affect the mechanical properties of aluminum profiles?
In general, surface treatments have minimal impact on the mechanical properties of aluminum profiles and can even enhance certain characteristics. For instance, increases surface hardness and wear resistance, and corrosion resistance.
Comprehensive services
Aluminum Extrusion
Provide mold design and production to product extrusion, supporting large-scale and complex extrusion production
Other Custom Fabrication Services
Die casting, welding, bending, assembly and other services