In the field of coating industry, electrophoretic paint, as a high-performance water-based coating, is widely used in automotive, home appliance, hardware, and other sectors due to its excellent coating film properties and environmental friendliness. So, what exactly are the materials that make up this amazing coating? Today, let's unveil the mystery of the raw materials of electrophoretic paint.

　　Electrophoretic paint, also known as electrophoretic coating, is a mixture of organic polymer salts that can ionize in water and pigments. According to the ionic form of the film-forming substance in water, electrophoretic paint can be classified into cationic electrophoretic paint and anionic electrophoretic paint; and based on the application method, it is divided into anodic electrophoretic paint and cathodic electrophoretic paint. Different types of electrophoretic paint have different raw material compositions.

　　The basic raw material of electrophoretic paint is resin, which is the key component for forming the coating film. Commonly used resins include acrylic resin and epoxy resin. Acrylic resin has good weather resistance and light retention, allowing the coating film to maintain its bright color for a long time; epoxy resin is known for its excellent adhesion and corrosion resistance, providing reliable protection for metal substrates.

　　Pigments are important raw materials that give electrophoretic paint color and decorative effects. Inorganic pigments such as iron oxide red and titanium dioxide have bright colors and strong hiding power; organic pigments can provide a wider variety of color choices. By reasonably combining different types of pigments, a variety of desired colors can be formulated to meet different decorative needs.

　　In addition to resins and pigments, various additives are also added to electrophoretic paint to improve its performance. For example, drying accelerators can speed up the drying speed of the coating film and improve production efficiency; toughening agents can enhance the flexibility of the coating film and prevent it from cracking during use; leveling agents help the coating film form a smooth and flat surface during the drying process. In addition, there are defoamers, dispersants, and other additives that serve to eliminate bubbles and disperse pigment particles, respectively.

　　Solvents are also indispensable in electrophoretic paint, mainly used to adjust the fluidity and consistency of the coating. Although water is the main solvent in electrophoretic paint, in order to meet specific application requirements, a small amount of organic solvents, such as ethylene glycol butyl ether and propylene glycol monophenyl ether, may also be added.

　　Taking epoxy electrophoretic paint in cathodic electrophoretic paint as an example, it uses epoxy resin as the film-forming substance, adds pigments such as titanium dioxide, as well as various additives and an appropriate amount of solvents, which are prepared through fine ingredient mixing, stirring, filtration, and other processes. This type of electrophoretic paint has super salt spray performance and deep - hole throwing power, with a salt spray performance on phosphatized substrates of over 1000 hours, and is widely used in automotive primer corrosion protection and other fields.

　　The raw material composition of electrophoretic paintis rich and diverse, with various raw materials working together to give electrophoretic paint its excellent properties. With the continuous advancement of technology, the raw materials and processes of electrophoretic paint are also constantly innovating and developing. It is believed that electrophoretic paint will play an important role in more fields in the future.