Aluminum profile surface treatment: powder coating

In recent years, with the diversification and personalization of buildings, the surface of architectural aluminum profiles has developed in the direction of color diversification.

The aluminum extruded profile has a single aluminum natural color without surface treatment.

The surface treatment can enhance the profile performance and extend the service life, and can also improve the architectural decoration effect.

Aluminum profile surface treatment is an indispensable production process in aluminum processing, and powder coating is one of aluminum surface treatment methods.

China’s powder coating process is basically in the first and second industries, especially in the manufacturing and construction fields of the secondary industry.

The building industry is the largest field of coating applications, and the application of architectural coatings in exterior wall decoration shares about 60%.

Architectural beauty

Aluminum profile surface treatment: powder coating

About powder coating

Colorful, energy-saving, safe, environmentally friendly, recyclable

Powder coating, one of the most advanced forms of metal building material protection, is a cost-effective coating solution for different types of products.

In Europe of the 1950s, with the development of the economy, the requirements for environmental protection were getting higher and higher.

Dr. Erwin Gemmer, a German scientist, developed fluidized bed coating and powder coating technology starts.

From 1962 to 1964, the French company Sames developed the first generation of electrostatic powder coating equipment for organic powder coating by improving the existing electrostatic spray gun.

The electrostatic powder coating technology was officially opened.

Powder coating is a coating layer on the surface of aluminum alloy profile substrate by electrostatic action.

The coating has good adhesion, weather resistance, peeling resistance, strong UV resistance and dense coating.

It has excellent performance compared with the other general aluminum profile surface treatments.

The coating effect is superior to the painting process in terms of mechanical strength and aging resistance, and the cost is also lower than the same effect of the painting process.

Powder coating aluminum profile from Honstar

Powder coating process

Chromizing and curing temperature and time

Vertical (horizontal) powder coating process flow chart:

Loading→ Pretreatment(chromizing) → Powder coating→Curing→ unloading

The purpose of chromizing:

To form a fine and stable chrome film on the surface of aluminum profile.

The film has certain wear resistance, corrosion resistance and good adsorption capacity so that the coating can improve its adhesion when it is applied.

Curing:

Powder coating is cured by high-temperature baking and curing to become the final coating with different effects;

In powder coating, the baking curing temperature and time of the powder coating play a decisive role in the curing performance of the coating.

Therefore, it is necessary to conduct a number of tests to properly classify the objects to be sprayed to determine the number and arrangement of the aluminum profiles,

And the corresponding baking curing temperature and time to ensure the quality of the aluminum extrusion products.

Powder coating workshop

With color diversification, People’s pursuit of color beauty continues to improve

Different proportions of powder have different visual effects, satisfying customers’ individualized demands, rich colors, uniform color, and cost-effective powder-coating aluminum profiles are increasingly used in domestic applications, and fashionable and personalized coating applications are increasing.

Electrostatic powder coating aluminum profiles can be constructed according to the spatial relationship of wall, aluminum profile and glass, using color matching and blending to construct a variety of decorative effects.

The diverse colors and appearance of powder coating can meet the construction needs of different styles of buildings, providing designers with broader design space.

High-building aluminum profile curtain wall project

Foshan Honstar Aluminum Products provides powder coated aluminum profile for our customers, different shapes with all RAL colors, Custom aluminum extrusion plus service, and machining.

One-stop service and total solution. More than you expected!

The high-level powder-coating aluminum profiles meet the needs of the diversified development of buildings.

Continuously improve the process, with different surface treatment technology, pay attention to every detail such as color, shape, appearance and craft, and show the quality in the details.

Honstar Aluminum Products Co., Ltd has been an aluminum industry leader for over 12 years in manufacturing precision aluminum parts, custom aluminum extrusions and standard aluminum extrusions.

We focus exclusively on producing the smallest, most complex, precision aluminum parts, custom aluminum extrusions, standard aluminum extrusions and floor covering aluminum profiles.

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