OTHER EPOXY POWDER COATING

Industry knowledge

In addition to epoxy resin and curing agent, what additives (such as diluents, leveling agents, fillers, etc.) are added to epoxy powder coatings? How do these additives affect the construction performance and final effect of the coating?

The main function of diluents in epoxy powder coatings is to adjust the viscosity of the coating to make it easier to apply. In the production process of powder coatings, proper viscosity control is essential to ensure uniform spraying of the coating and reduce the risk of nozzle clogging. Huacai Company uses high-quality diluents, which can not only effectively reduce the viscosity of the coating, but also ensure that the coating particles remain well dispersed during the spraying process to avoid agglomeration, thereby improving the uniformity and smoothness of the coating. In addition, the selection of diluents must also consider their impact on the performance of the coating after curing to ensure that the coating can still maintain excellent mechanical properties and corrosion resistance after curing.
Leveling agent is another crucial additive in epoxy powder coatings, which directly affects the surface quality of the coating. During the coating process, the leveling agent can promote the flow and spreading of the coating on the surface of the substrate, so that the coating forms a flatter and smoother appearance. The leveling agent used by Huacai Company has been carefully selected. It not only has excellent leveling performance, but also can effectively reduce surface defects such as pinholes and shrinkage holes during the curing process of the coating, and improve the overall aesthetics of the coating. In addition, some special types of leveling agents can also enhance the wettability of the coating to the substrate, improve adhesion, and ensure that the coating is not easy to fall off during long-term use.
The role of fillers in epoxy powder coatings is mainly reflected in enhancing the hardness and wear resistance of the coating, reducing costs, and adjusting the gloss of the coating. Huacai Company uses a variety of fillers, including but not limited to calcium carbonate, talcum powder, wollastonite, etc. These fillers are finely processed and have uniform particle size distribution, which can effectively improve the density and mechanical strength of the coating. At the same time, by adjusting the type and amount of fillers, Huacai Company can accurately control the gloss of the coating to meet the personalized needs of different customers for gloss effects. It is worth noting that the addition of fillers needs to be strictly controlled in proportion to avoid affecting the fluidity and curing speed of the coating. With rich experience and advanced testing equipment, Huacai Company can ensure that every formula adjustment can achieve the best effect.
In addition to the above-mentioned main additives, epoxy powder coatings may also contain a variety of functional additives such as pigments, plasticizers, matting agents, antistatic agents, etc. to further enhance the performance of the coating or meet the needs of specific application scenarios. For example, the choice of pigment not only affects the color of the coating, but also the weather resistance and light resistance of the coating; plasticizers can increase the flexibility and ductility of the coating and improve its adaptability in extreme environments; matting agents are used to adjust the gloss of the coating to achieve a matte effect; antistatic agents can effectively prevent the accumulation of static electricity on the surface of the coating and improve safety.
In the research and development and production of epoxy powder coatings, Huacai Company not only pays attention to the selection and quality control of raw materials, but also is committed to technological innovation and formula optimization. The company has 34 semi-automatic production lines and German ZEPPELIN bonding machines, with an annual output of up to 30,000 tons, ensuring the stability of product quality under large-scale production. At the same time, relying on its own resin factory and raw material production center, Huacai can achieve full-chain control of raw materials and ensure the quality of coatings from the source. In addition, the company is equipped with advanced testing instruments (such as SHIMADZU XRF, Mastersizer 3000E, Datacolor 400) that can accurately analyze the coating composition, particle size distribution, color, etc., ensuring that each batch of products meets international standards and the strict requirements of the high-end market.
In the formulation design of epoxy powder coatings, Huacai Company fully considers the particularity of different application scenarios and develops a series of coating products with excellent performance by scientifically adjusting the types and proportions of additives. These products not only have excellent decorative and mechanical properties, but also have good corrosion resistance and environmental protection. They are widely exported to Europe, the United States, Southeast Asia, South America and other places, and have won wide acclaim from domestic and foreign customers.