Surface treatment: film coating

Date: 2025-08-27 / Views: 296 / Category: What is Die Casting?

Surface treatment: film coating

Benefits of Coating Aluminum Die-Cast Finishes
 

Improved Corrosion Resistance

Aluminum alloys are susceptible to oxidation in humid or acidic or alkaline environments. Coating or coating creates a protective layer that reduces rust and corrosion.
 

Enhanced Wear Resistance

Specialized coatings (such as anodizing) can increase surface hardness, reduce friction and wear, and extend product life.
 

Improved Appearance

Coating or coatings offer a variety of colors and finishes (gloss, matte, metallic), enhancing product aesthetics and value.
 

Increased Surface Strength

Coatings can compensate for minor imperfections on die-cast surfaces, improve scratch resistance, and enhance the robustness of housings or structural components.
 

Improved Insulation or Conductivity

Different coatings can provide either insulation (such as electronic component housings) or conductivity (such as special electroplating), depending on the application.
 

Improved Subsequent Processability

Coatings can make surfaces easier to bond, print, or process, improving process integration.
 

Complying with industrial and environmental requirements

Through specialized coatings or paint treatments, aluminum die-cast products can comply with international standards such as salt spray resistance, RoHS, and REACH, increasing exports and market applications.
 

Film coating not only enhances protective properties (corrosion resistance, wear resistance, and weather resistance) but also improves appearance and functionality (textured feel, aesthetics, and insulation/conductivity). It is a common and necessary treatment for industrial products, electronic products, and automotive parts.

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