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What Is Aluminum Profile Powder Coating

2025-11-21 10 min read

What is aluminum profile powder coating — why it is necessary, main material composition, process steps, and supplier selection.

Aluminum profile powder coating is a surface treatment method for aluminium profiles. Essentially, it uses electrostatic treatment to attach solid powder to the surface of aluminium profiles, and then forms a hard surface film through high temperature. Therefore, powder coating is widely used in various aluminium profiles, such as Aluminum Solar Profiles, Aluminum Profiles Heat Sink and Automotive Aluminum Profiles.

Why is aluminum profile powder coating necessary?

aluminum profile powder coating

Corrosion resistance — The surface film formed by powder coating on aluminum profiles can isolate the aluminum profiles from moisture and air in the environment.

Beautiful and colorful — The aluminum profile powder coating offers a wide range of aesthetic colors.

Environmentally friendly — Unlike paints, heavy metal coatings, and polyurethane coatings, the powder coating used here is an eco-friendly material.

UV-resistant — The surface film of powder coating is relatively hard.

Camouflage — For aluminum profiles with defects such as extrusion lines, scratches, bubbles, pockmarks, color differences, etc.

The main material composition of aluminum profile powder coating

aluminum profile powder coating

Resin — It determines the hardness and UV resistance of the surface of aluminum profiles.

Pigments — They can determine the color, UV resistance and surface gloss of the surface coating.

Curing agent — A curing agent is a substance that reacts with resin to transform the powder state of the material into a solid state.

How to perform aluminum profile powder coating?

Powder coating steps — Fixing aluminum profiles on the rack, Cleaning, Pre-treatment, Electrostatic adsorption, Curing, Quality inspection.

Select an aluminum profile powder coating supplier

Shenghai Aluminium has accumulated ten years of experience in powder coating. We have a complete production line covering raw materials, coating, and packaging, with a total of seven lines.

Senior Engineering Team
SH-ALUMINUM
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