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Metal Finishing

The versatility of aluminum makes it the perfect surface treatment medium.Metal finishing or aluminum finishes, is the process of utilizing different techniques to alter the surface of an aluminum object, for improving the appearance and properties like corrosion resistance, tarnish resistance, chemical resistance, wear resistance, and hardness, modifying electrical conductivity, removing burrs or applying specific colors to the aluminum machined or Aluminum Extrusion components. It usually through adding a layer of metal or non-metal coating on the exterior of aluminum machined or aluminum extrusion workpiece, which can also clean the part at the same time. Be-cu also offers different surface treatment, which is colorful and Polishing Shiny anodizing, powder coating, electrophoresis coating, and PVDF coating.Be-cu has advanced anodized line imported from Germany, which can meet your different demand with high-level quality.

Different Types of Metal Finishes – Aluminum Parts Surface Finishing Services Available at Be-cu

Finishing serves two main purposes. That includes enhancing the final appearance. That means that a well-finished aluminum parts will look better than that which is not. Besides, a well-finished aluminum product will last longer because most finishes enhance anti corrosiveness. Here are some of the best finishes you can try out.

Powder coating

A solid powder is applied on top of the aluminum parts. This shields the aluminum from corrosive action among other wear and tear agents. This is done during the oven process as the machining aluminum is prepared for supply.

Sometimes, machining aluminum profiles are used in industries that involve emissions. Powder coating helps with compliance to meet the standards required. In these cases, the environment is a major conversation. For sustainability purposes, powder coating is used to keep the metal intact and minimize emissions to the environment.



This is another popular finishing option utilized by aluminum machining companies. The electrochemical process offers increased surety by providing an additional shield to the aluminum surface. The benefit of anodization is that it accepts many metallic colors. Besides, all aluminum alloys can be anodized. This is a common finishing option for aluminum parts.


Sublimation woodgrain finish

Woodgrain effect is a special finishing option. In this type of finishing, woodgrain is put into a sublime film of art. This is a chance for the creatives to showcase their talent. Once the art has been drawn, sublimation allows the transfer of the art to the aluminum surface.

In most cases, sublimation is meant for aesthetic purposes. This type of finishing also has an impact on the longevity of the aluminum. That means it will last longer considering it’s shielded by another substance on top.


Mechanical finishes

This is also a good alternative. After buffing is done, the metal is either ground or sanded to give it a smooth or rough finishing depending on what the client wants or needs. Two things can be achieved by this. One, the aluminum machining is prepared for better aesthetic finishes. Or, it could be to enhance the surface quality of the aluminum product.

With better quality, the extruded aluminum becomes a better one. The client will therefore get better value for their money. The long-lasting aluminum parts will serve a lifetime and will only require repair, maintenance, or replacement of the aluminum product.

Mechanical finishes

Liquid paintings

Most products are painted after production for aesthetic purposes. Different colors are applied to the aluminum parts. This provides a buffer against corrosion as well. For that reason, the aluminum profile products will last longer and cost less for maintenance.

A long-lasting aluminum machining ensures that the purpose is served well. For a while, the aluminum metal will be productive and efficient.



Polishing, also known as buffing, a process of rubbing the surface of parts or utilizing a chemical action to produce a smooth and shiny surface, make the surface get significant specular reflection or reduce diffuse reflection in some materials.


Heat Treatment

The process through utilizing heating or chilling usually under extreme temperatures to make the metal achieve a certain state or change some characteristics, heat treating techniques including annealing, tempering, hardening, precipitation strengthening, tempering, carburizing, normalizing and quenching.


Black Oxide (Hot Blackening)

The technique also known as blackening, or gun bluing, a chemical process of forming a black conversion coating on stainless steel, copper and copper based alloys, zinc, powdered metals, silver solder, and ferrous materials, the black oxide coating can improve corrosion resistance and minimize light reflection



A common chemical surface treatment method mostly for steel and stainless steel, to use a light coat of protective material to create a shell for enhancing the corrosion resistance or reducing the chemical reactivity. Passivation of stainless steel removes free ironand ferrous contaminants on metal surface with an acid solution to prevent rust.


Abrasive blasting (Sandblasting)

The operation of propelling a stream of abrasive material composed of high-velocity sand-sizes particles against the metal surface under high pressure with blast equipment like air pressure system, to remove surface contaminants, clean metals or increase a texture, then change the smoothness or roughness of surface.



Mainly to make the surface more beautiful and rust free.
Chrome plating
It can make the metal products more durable. Hard chrome plating is mainly applied for machinery which under high temperature conditions, such as molds. Decorative chrome plating is mainly to make the surface brighter and more beautiful in appearance.
Nickel plating
It is deposited on the metal surface by oxidation-reduction effect, which is used to improve corrosion resistance and wear resistance, and increase beauty and glossy.
Titanium plating
preventing pollution, and will not cause allergic reactions in contact with the human body. Because the titanium compound has a variety of colors, it can increase the aesthetic effect. Meanwhile, titanium has the function of anti-acid, anti-alkali and anti-oxidation.
Silver plating
There are two main functions, one is decoration and the other is functionality. Decorative silver plating are used for oxidation resistance experiments. Functionality is mainly used in the electronics industry, such as electrodes, wires, electric shocks, pole pieces, and so on.
Gold Plating
It is a method of depositing a thin layer of gold on the surface of another metal (most commonly copper or silver) through chemical or electrochemical plating.

After browsing a list of metal finishing services, select a process based on essential considerations, like production time, cost-effectiveness, part tolerance, durability and applications. High-tolerance CNC milling, turning parts are not recommended to apply secondary metal surface finish, because the treatment may change the sizes of the finished part through removing or adding a small amount of materials.

Other requirements or custom designs, welcome to contact us for a free quote fast!