What post-processing options are available for aesthetic or functional coatings?
What Post-Processing Options Are Available for Aesthetic or Functional Coatings?
Importance of Post-Processing in Die Cast Components
Post-processing treatments are critical for enhancing both the visual appearance and functional performance of die cast components. Whether for corrosion protection, improved surface durability, or refined aesthetics, Neway offers a comprehensive selection of coating and surface finishing services tailored to aluminum, zinc, and copper alloys.
Key Aesthetic and Functional Coating Options
Powder Coating
Powder coating delivers a smooth, uniform finish with excellent durability and corrosion resistance. It is available in matte, gloss, metallic, and textured finishes.
Coating thickness: 60–120 µm
ASTM D7803-compliant
Ideal for consumer electronics, industrial covers, and architectural components
Painting
Painting provides versatile color options and surface textures. UV-resistant and heat-resistant paints are available for both aesthetic and protective purposes.
Suitable for branding, logos, and high-visibility surfaces
Available in solvent-based and waterborne formulations
Anodizing
Anodizing is applicable to aluminum castings, offering enhanced wear resistance and color finishing.
Type II for color and decorative use
Type III (hard anodizing) for abrasion resistance
Thickness: 10–25 µm
Ideal for aerospace, medical, and consumer-facing parts
Arc Anodizing
Arc anodizing creates a ceramic-like oxide layer, combining electrical insulation with high surface hardness.
Commonly used in high-performance or electrically insulated parts
Provides strong adhesion for subsequent coatings or laser marking
Electroplating
Electroplating is used to deposit metal finishes like nickel, chrome, brass, or gold for both functional and decorative purposes. It enhances electrical conductivity and corrosion resistance.
Applicable to zinc and copper alloy components
Compliant with ASTM B456 and ISO 4525
Tumbling and Polishing
Tumbling smooths and deburrs surfaces, preparing components for coatings or final use. Mechanical and manual polishing further enhances reflectivity and surface uniformity.
Recommended Coatings by Application Objective
Objective | Recommended Coating | Primary Benefit |
|---|---|---|
Visual Enhancement | Painting, Powder Coating | Color consistency, surface finish |
Corrosion Resistance | Anodizing, Electroplating | Long-term surface protection |
Wear Resistance | Arc Anodizing, Hard Anodizing | Improved surface hardness |
Conductivity Improvement | Nickel/Silver Electroplating | Enhanced electrical performance |
Brand Marking & Finish | Polishing, Painting | Surface clarity and branding integration |
Customer-Oriented Surface Finishing Solutions
Neway Die Casting provides fully integrated post-processing capabilities for die cast parts across industries:
Surface Finishing Services: Comprehensive solutions tailored to part geometry and functional requirements
Painting and Coating: Color-matched and weather-resistant coatings for enhanced product identity
Precision Machining and Preparation: Surface prep and sealing compatibility to ensure adhesion and performance
