Let’s look at the role of dispersants in automotive repair paint. In the process of car repair, whether it is a small scratch or a large area of ​​damage, repair paint is needed. The main function of automotive repair paint dispersants is to ensure that the repair paint can be evenly applied to the car body to form a smooth and flawless surface. It reduces the surface tension of the paint so that the pigment and resin can be well mixed together to avoid granularity or stratification, thereby improving the overall texture and durability of the coating. Next, let’s learn about several common automotive repair paint dispersants. According to the chemical properties, there are mainly three types: cationic, anionic and non-ionic. Cationic dispersants are usually used for basic coatings because they have good adsorption capacity and can quickly attach the paint to the metal surface; anionic dispersants are suitable for occasions that require strong corrosion resistance; non-ionic dispersants are widely used in various types of coating formulations due to their stable chemical properties. In addition, there are new products such as water-based dispersants designed for environmental protection, which aim to reduce the use of organic solvents to reduce environmental pollution.


After understanding the types of dispersants, let’s talk about how to use them. When using, you should choose a suitable dispersant according to the specific repair requirements and the type of repair paint used. The amount of addition also needs to be strictly controlled. Excessive or insufficient amounts may affect the final coating effect. Usually, manufacturers will provide detailed product descriptions and recommended ratios. Users should strictly follow the instructions.

During use, the following points should also be noted: First, keep the car body clean. Any oil stains and dust may affect the adhesion of the paint; second, the ambient temperature and humidity should be appropriate. Too high or too low may affect the drying and hardening process of the paint; third, be sure to test spray before spraying to check whether the paint color and effect meet expectations; finally, after the construction is completed, give enough time for the paint layer to completely harden in order to achieve the best protection effect.

In addition to the above points, the storage of automotive repair paint dispersants should not be ignored. Because dispersants usually contain some volatile components, they should be stored in a cool, dry and well-ventilated place, avoiding direct sunlight and high temperature. At the same time, sealed storage can prevent moisture from entering and affecting its performance.


Automotive repair paint dispersants are indispensable auxiliary materials in car maintenance. It can not only improve the construction performance of the paint and improve the repair efficiency, but also ensure the quality of the repaired coating and extend the service life of the car. Therefore, it is very necessary for every car owner to understand and use dispersants correctly.


I hope that through the introduction of this article, everyone has a deeper understanding of automotive repair paint dispersants. Remember to choose high-quality products suitable for your vehicle and follow the correct construction process in actual operation to ensure that your car is taken care of in the best way. If you have any questions about automotive repair or paint dispersants, please feel free to consult professionals for more guidance and help.