
Sulfuric acid anodizing
Sulfuric acid anodizing is a process used to protect aluminum surfaces by creating a durable, corrosion-resistant oxide layer. The aluminum object is submerged in sulfuric acid and electricity is passed through it. This causes the surface to oxidize and form a thick, stable aluminum oxide coating. This layer improves the material’s resistance to corrosion and wear, and can also be prepared for additional finishes like coloring or sealing. It’s widely used in aerospace, automotive, and architectural applications to extend the lifespan and enhance the appearance of aluminum parts.