Classification of Aluminum Pigments | Fulcolor 

Aluminum pigments have extensive applications in the industry, and they can be classified in various ways based on different characteristics and purposes. Below is a brief summary of the classifications of aluminum pigments.

I. Classification based on different surface treatments

Leafing Type: Aluminum pigment particles float on the top of film layer after treating with stearic acid.
Non-leafing: Aluminum pigment particles do not float on the top of film layer and suspend in the middle of the film layer.
Aqueous Aluminum Pigments: aluminum flakes are treated by special additives which is compatible with water borne system.
Resin-coated Aluminum Pigments: usually acrylic resin is used for resin coated aluminum pigment to reduce the conductivity, increase the adhesion and chemical resistance. Coated aluminum pastes are used for high-performance coating systems.

II. Classification based on the particle size of aluminum pigments:

Fine Silver: Particle size ranging from 3-14μm, characterized by fineness, good whiteness, and excellent covering power.
Sparkling Silver: Particle size ranging from 15-30μm, featuring moderate brightness, sparkling effects, and good covering power.
Super Sparkling Silver: Particle size exceeding 30μm, with significant brightness and pronounced sparkling effects.

III. Classification based on the state of aluminum pigments:

Aluminum Powder: Processed through ball milling and coating, mainly used in powder coatings.
Aluminum Paste: Obtained through wet ball milling, primarily used in coatings and inks.
Vacuum Metallized Pigment: are extremely thin aluminum flakes produced in a special process (also known as Physical Vapor Deposition). VMP products are used in coatings and inks for mirror-effect or chrome effect.
Aluminum Pellets: Produced by removing excess solvents, adding PE wax or other carriers by extruding through an extruder, mainly used in plastics.

IV. Classification based on the shape of aluminum particles:

Cornflake: Rough and irregular surface of aluminum particles, exhibiting diffuse reflection.
Silver Dollar: Smooth surface of aluminum particles, exhibiting mirror-like reflection, with excellent sparkling and reflective effects.

These classification methods contribute to understanding the characteristics of aluminum pigments and being helpful in selecting the appropriate type for different applications.