Coatings Additive

In the microscopic world of materials science, there is an "industrial MSG" (monosodium glutamate). Though invisible to the naked eye, it profoundly alters the performance of many products. This is fumed silica. Today, we will focus on the star product of Zhengzhou Gesee New Materials Co., Ltd. — K380 (a hydrophilic fumed silica with a specific surface area of 380 m²/g) — and explore how this high-performance material excels in various fields.   Meet K380: More Than Just "High Surface Area" K380 is a nano-scale hydrophilic fumed silica produced by Zhengzhou Gesee through a high-temperature hydrolysis process. Its core parameter—a specific surface area of 380 m²/g—means it has an extremely fine primary particle size (about 7 nm) and high surface energy. Compared to conventional products with a surface area of 200 m²/g (like AEROSIL 200), K380 is finer and stronger, which allows it to provide more significant thickening and thixotropic effects in applications. In the global market, K380 has well-known "benchmark models," such as Evonik's AEROSIL® 380, Cabot's EH-5, and WACKER's T40. The emergence of Zhengzhou Gesee K380 aims to provide the market with a high-quality, cost-effective domestic alternative.   The "Rheology Master" for Paints and Inks For high-end coatings, especially UV-curable coatings and waterborne industrial anti-corrosion coatings, preventing sagging during application and sedimentation during storage are two major challenges. Thanks to its high specific surface area, K380 is rich in silanol groups on its surface. After dispersion in the system, these silanol groups form hydrogen bonds, building a strong three-dimensional network structure.   At rest: The network structure is robust, increasing the system's viscosity and effectively preventing the settling of pigments and fillers. During application: When subjected to shear forces (such as spraying or brushing), the network structure breaks down, viscosity drops instantly, ensuring good leveling. Upon recovery: When the shear force ceases, the network rebuilds quickly, preventing the wet film from sagging. Research shows that adding hydrophilic fumed silica to UV plastic coatings can significantly increase viscosity at low shear rates—an area where K380 excels. In two-component waterborne acrylic systems, an appropriate amount of hydrophilic product can significantly enhance the system's thixotropy and salt spray resistance.   The "Reinforcing Pillar" for Adhesives and Sealants In the field of silicone rubber and adhesives, K380 is an indispensable reinforcing filler. Especially for addition-curing liquid silicone rubber (HCR/LSR) requiring high transparency, the nano-scale particle size of K380 is much smaller than the wavelength of visible light. Therefore, it can greatly enhance the material's tear and tensile strength without affecting transparency. In cable compounds and unsaturated polyester resins, K380 also provides reinforcement and thixotropic control through its three-dimensional network structure, ensuring the uniformity of cable compounds and the non-sagging properties of resins on vertical surfaces.   The "Stability Guardian" for Complex Systems Agricultural ChemicalsIn modern agrochemical formulations, whether for Suspension Concentrates (SC) or Oil-based Suspension Concentrates (OD), physical stability is key. K380 can act as an efficient anti-settling agent and rheology modifier. It prevents the active ingredient particles from aggregating or sedimenting during storage, ensuring that farmers only need a slight shake before use to restore uniformity and guarantee efficacy. Powder ProductsFor powdered substances, such as food additives or fire extinguishing agents, K380 can act as a flow aid and anti-caking agent. Its nanoparticles attach to the surface of the host powder, acting like "ball bearings" to reduce inter-particle friction, or absorbing excess moisture to prevent caking, thus maintaining good flowability.   Why Choose Zhengzhou Gesee K380? In the context of global supply chain diversification, domestic high-performance materials are ushering in a springtime. K380 is benchmarked against international standards, possessing a stable high specific surface area of 380 m²/g, ensuring the reliability of its thickening and reinforcing properties. Meanwhile, as a local brand, Zhengzhou Gesee can provide faster technical responses and a stable supply guarantee, helping enterprises reduce procurement costs and enhance market competitiveness   Conclusion From the sealants in precision electronic components to the anti-corrosion coatings on large machinery, and even in agrochemicals that ensure food security, Zhengzhou Gesee K380, with its nano-scale size and micro-scale efficacy, silently guards every innovation in modern industry. If you are looking for a hydrophilic fumed silica that combines high performance with economy, K380 is undoubtedly a trustworthy choice.