Hard Anodizing vs Type II Anodizing for CNC Aluminum Parts: When to Specify Each", category: "Surface Treatment", date: "Jun 18, 2026", readTime: "9 min read", image: "https://images.unsplash.com/photo-1581092918056-0c4c3acd3789?w=900&q=80", excerpt: "Anodizing is the most common surface treatment for CNC machined aluminum parts. But Type II (standard) and Type III (hard coat) anodizing are very different processes with very different performance characteristics. This guide tells you exactly when to specify each, and what dimensional changes to account for in your design.
| Surface Treatment", date: "Jun 18, 2026", readTime: "9 min read", image: "https://images.unsplash.com/photo-1581092918056-0c4c3acd3789?w=900&q=80", excerpt: "Anodizing is the most common surface treatment for CNC machined aluminum parts. But Type II (standard) and Type III (hard coat) anodizing are very different processes with very different performance characteristics. This guide tells you exactly when to specify each, and what dimensional changes to account for in your design.", tags: ["hard anodizing aluminum", "Type III anodize", "Type II anodize", "anodizing CNC parts
Anodizing is the most common surface treatment for CNC machined aluminum parts. But Type II (standard) and Type III (hard coat) anodizing are very different processes with very different performance characteristics. This guide tells you exactly when to specify each, and what dimensional changes to account for in your design.", tags: ["hard anodizing aluminum", "Type III anodize", "Type II anodize", "anodizing CNC parts", "hard coat aluminum"], relatedSlugs: ["anodizing-vs-powder-coating", "anodizing-vs-powder-coating-outdoor