What characterizes metallic pigments?

Metallic pigments are primarily characterized by their unique physical structure, which typically includes finely divided aluminum that is processed into thin flakes. This flake structure is crucial because it not only affects the appearance of the paint but also influences its reflective properties. When these flakes are dispersed in a suitable medium, they can create a shimmering or glittering effect, which is often sought after in various applications, such as automotive finishes or decorative coatings.

The use of aluminum, in particular, enhances the metallic appearance of the paint, contributing significantly to its visual appeal. Additionally, the orientation and distribution of these flakes can also impact the paint's texture and finish, including its gloss and opacity.

While metallic pigments can provide some functional benefits, such as slight anti-corrosive properties, their primary and defining characteristic is their formation from finely divided metals, like aluminum, that contribute to the aesthetic properties of the paint.