When selecting leveling agents, comprehensive consideration should be given to specific application scenarios, substrate characteristics, coating requirements, and other factors. At the same time, attention should also be paid to the environmental friendliness, cost-effectiveness, and compatibility with other additives of leveling agents.

The amount of leveling agent added has a significant impact on the performance of the coating. Adding too little may not achieve the expected effect; Excessive addition may lead to coating problems such as sagging and sticking. Therefore, it is necessary to determine the optimal range of addition amount based on experimental verification, and strictly control the accuracy and uniformity during the addition process.

When using leveling agents, it is necessary to follow the operating procedures and safety requirements. Pay attention to keeping the production environment clean and dry; Avoid direct contact with skin and eyes; Properly store and transport leveling agent products, etc. In addition, attention should be paid to details such as the mixing sequence and stirring time of leveling agents and other additives.

There are various methods to evaluate the effectiveness of leveling agents, such as visually inspecting the flatness and glossiness of the coating; Use instruments to measure performance indicators such as surface tension and viscosity of coatings; And conduct practical application testing, etc. Through comprehensive evaluation using multiple methods, the performance characteristics and scope of application of the leveling agent can be more comprehensively understood.

During the use of leveling agents, some common problems may be encountered. Here are some common issues and their solutions:

Problem 1: Orange peel phenomenon on the coating

It may be due to insufficient addition of leveling agent, high viscosity of coating, or improper spraying process. So the amount of leveling agent added should be increased, and the coating formula should be readjusted to reduce viscosity. Optimize the spraying process, such as adjusting parameters such as spray gun distance and spraying speed, to ensure that the coating is evenly spread. Check and clean the spraying equipment to avoid nozzle blockage or uneven spraying.

Problem 2: Pinholes or shrinkage on the surface of the coating

It may be caused by impurities mixed in the coating, excessive surface tension, or improper substrate treatment. So it should be ensured that the coating is kept clean during preparation and use, avoiding the mixing of impurities. Select the appropriate type of leveling agent and adjust its dosage to reduce surface tension. Strengthen the treatment of the substrate, such as cleaning, polishing, etc., to improve the wettability and adhesion of the substrate.

Problem 3: Coating sagging phenomenon after drying

It may be due to excessive addition of leveling agent, strong flowability of the coating, or poor drying conditions. So the amount of leveling agent added should be reduced, and the coating formula should be readjusted to reduce fluidity. Optimize drying conditions, such as increasing drying temperature, extending drying time, etc., to ensure that the coating is fully cured. Adjust the construction thickness of the coating to avoid excessive thickness and sagging caused by one-time application.

Question 4: The leveling agent reacts with other additives

It may be due to the chemical incompatibility between leveling agents and other additives. Therefore, when choosing leveling agents, it is necessary to fully understand their chemical properties and compatibility to avoid adverse reactions with other additives. The compatibility of leveling agents with other additives can be verified through experiments to ensure the stability and reliability of the formula. If any reaction phenomenon is found, the formula should be adjusted or the type of leveling agent should be replaced in a timely manner.

Leveling agents, as important additives in liquid materials such as coatings and inks, have a significant effect on improving the surface properties of coatings. However, various problems may be encountered during use. Therefore, the correct selection of leveling agents, reasonable control of addition amounts, attention to operational details, and timely resolution of common problems are crucial to ensuring coating quality. In the future, with the continuous advancement of technology and the improvement of environmental requirements, the performance of leveling agents will be continuously optimized and enhanced, contributing greater strength to the development of the coating industry.