Customers
Served
Parts
Manufactured
Countries
Shipped
Manufacturing
Partners
Primarilyaluminum and its alloys
Increases by ~0.5–2.0µm Ra.
Uniform, satin to matte finish
Wide range of colors available
Typically 0.0002" to 0.001"(5-25 microns).
Smooth with mild porosity for dye retention
Primarily aluminum and its alloys
~0.5–2.5µm Ra.
Dull gray to dark finish, depending on alloy
Limited, not ideal for decorative purposes
Typically 0.002" (50 µm)
Hard, dense, and porous matte surface
Type II anodizing uses sulfuric acid to produce a thinner, decorative anodic layer that can be dyed in various colors. It typically forms a coating 0.00007” to 0.001” thick.
Type III (hardcoat) anodizing is performed at lower temperatures and higher current densities to produce a much thicker and harder anodic coating—typically 0.0005” to 0.004”.
Type II: Smoother, more decorative.
Type III: Rougher (micro-textured), more industrial.