The application range and role of carbon black in coatings

Car topcoat with carbon black

When people look at the appearance of a car, the car finish gives a sense of beauty. Automotive topcoats are used to provide protection and the look that people need. The carbon black for coatings produced by the black pigment carbon black manufacturer is widely used for the main color (black) pigment, and has high blackness, high gloss and ultraviolet resistance. It also has high purity, low residual salt content, and higher blackness.

Automotive primer used for carbon black

Automotive primers are generally not visible, but they are the basis of surface coating systems. Requirements for primer carbon black include dispersibility, purity, and sometimes electrical conductivity.

Car electrophoresis paint used for carbon black

Automotive electrophoretic paints are mainly divided into two categories, one is electrophoretic coating itself; the other is conductive, can be coated on a non-conductive substrate, and then coated with electrophoretic paint. The performance of the carbon black used in these two automotive electrophoretic paints is different.

Industrial coatings for carbon black

Industrial coatings are generally used for the coating of equipment and machinery. These coatings have a wide range of pigment requirements, and the variety of base materials, construction methods and colors are also different. Black enamel pigment carbon black products can be used in industrial coatings from lamp black substitutes to high pigment carbon black, but it is necessary to select the appropriate variety according to each specific use requirement.

Carbon black for architectural coatings

In architectural coatings, carbon black is mainly used for coloring. The coarser particles and the easily dispersible carbon black are more suitable. If UV resistance is required, it is suitable to use carbon black with a particle size of 20 μm. As a coloring pigment, it is generally required to have good stability, is not easy to produce floating color and hair color, and has a blue phase tone. The carbon black products of the masterbatch carbon black manufacturers can meet the coloring requirements of the blue phase, and use the pigmented pigmented carbon black which is suitable for the price.

Universal color paste for carbon black

Universal color paste refers to a color paste that can be used in both aqueous and solvent-based coatings. The universal color paste contains a pigment dispersed in a mixture of a solvent, a cosolvent, a diluent, and a wetting agent. Resin solids are rarely added. Some of these uses include special requirements for long-term inventory, including long-term effective stability of color, anti-flocculation, viscosity stability and anti-sinking. The coarse particle size carbon black is highly stable and is therefore widely used in general purpose colorants.

Carbon black for powder coating

The powder coating is essentially free of VOC release. The basic preparation of the powder coating is to first disperse the pigment in the desired resin system and then convert the dispersion into a powder. The dispersion of the pigment is a continuous process, using a mixing extruder, extruding through an extrusion head, then cutting short, and then grinding into a powder state.

Whether black carbon rubber-specific carbon black can be completely dispersed in an extruder with low shear force is the key to the production of qualified products. When choosing a carbon black variety, color is of course important, but it depends on its dispersion efficiency. Surface treated carbon black has its unique advantages in powder coatings.