With the increase of environmental protection inspections in the automotive industry, the requirements for environmental protection are getting higher and higher. Most of them prefer to use water-based automotive paints. As an environmentally friendly metallic pigment, it not only has a bright white appearance but also has a high cost performance. The following is a brief description of the application and advantages of water-based aluminum paste in water-based automotive paint from Sunflower Chemical.

There are two main coating processes for water-based aluminum paste: passivation and inorganic silicon coating.

1. Passivation: It is phosphate ester passivation, the coating layer is relatively thin, and it is not suitable to store for too long after the finished paint is made. The product has a bright white appearance, a strong metallic feeling, good floatability and excellent hiding power, can withstand adverse weather conditions, and the product is cost-effective. Main application: The product is widely used in spray paint and dip coating of self-drying type and baking type. It is suitable for the application of steel structure coatings with relatively rough surfaces such as bolts, angle irons and plates.

2. Inorganic silicon coating: good compactness and storage resistance. The finished paint can generally be stored for 6-12 months. They have the characteristics of strong metallic feeling, good hiding power, easy dispersion, and good stability.

At the same time, two points need to be paid attention to when producing water-based paint:

1. To use the resin system corresponding to the water-based aluminum paste, the acid value of the resin should not be too high.

2. Pay attention to the use of low speed during the dispersion of aluminum paste. High-speed dispersion will cause excessive shearing force to bend and deform the aluminum sheet of the aluminum paste.

Water-based aluminum paste is an important component of water-based paint, which can be better integrated with water solvents, thus meeting the requirements of environmental protection, and can reduce the average baking heat consumption by more than 40% in the coating production process. Reduce the energy consumption in the production process. Water-based paint also has the advantages of good paint leveling, no ripples, bright paint surface color, strong paint surface hardness, excellent scratch resistance and excellent weather resistance.