On September 16, 2025, the 28th China International Composites Industrial Technology Exhibition grandly opened at the National Exhibition and Convention Center (Shanghai). At this top-tier event in the composites industry, Hebei Messi Biology Co., Ltd., a leading domestic enterprise in the research, development, and production of high-purity active magnesium oxide materials, made a significant appearance. Its showcase of high-end magnesium oxide product series and innovative application solutions in composite materials became one of the main focal points for professional visitors, providing core material support for the high-performance and green upgrade of downstream industries.
Magnesium oxide, as an important inorganic functional filler and additive, plays an indispensable role in enhancing the performance of composite materials. This time, Hebei Messi Biology Co., Ltd. specifically highlighted its high-purity, high-activity specialty magnesium oxide products and their in-depth applications in three key areas:
I. Application in SMC Sheets (Sheet Molding Compound):
SMC materials, with their excellent mechanical strength, corrosion resistance, and dimensional stability, are widely used in automotive, electrical appliance, sanitary ware, and other fields. Messi Biology’s high-activity magnesium oxide acts as a core component of the thickener in this process, playing a critical role. It undergoes precise and efficient chemical reactions with the resin system, causing the viscosity of the molding compound to rapidly increase and stabilize within an optimal range for molding within a predetermined time, thereby significantly improving the material’s processability and molding efficiency. Messi magnesium oxide products are characterized by controllable reaction activity, stable thickening effect, and high product consistency, effectively ensuring the high-quality, large-scale production of SMC products and helping clients enhance product yield and competitiveness.
II. Application in BMC Dough (Bulk Molding Compound):
BMC, as a pre-mixed bulk composite material, is also widely used for electrical and structural components requiring high performance. In this field, the magnesium oxide provided by Messi Biology not only plays an excellent thickening role, ensuring the mixture has a good thickening curve and appropriate viscosity for compression or injection molding, but also, as an inorganic mineral filler, effectively improves the heat resistance, dimensional stability, surface finish, and electrical insulation properties of BMC products. Through strict process control, Messi Biology ensures extremely low impurity content in its magnesium oxide products, avoiding the risk of reduced electrical performance or surface defects due to impurity introduction, thus meeting the stringent requirements of the electrical industry for material reliability.
III. Wide Application in Other High-Performance Composite Materials:
Beyond SMC/BMC, Messi Biology’s high-end magnesium oxide products, due to their excellent performance, are also widely used in various specialty resin-based composite materials. For example, as a flame retardant filler, it decomposes at high temperatures and releases water vapor, while forming a high-temperature resistant magnesium oxide protective layer, providing efficient flame retardancy and smoke suppression. As a functional additive, it can also improve the thermal conductivity, wear resistance, and chemical stability of composite materials.
At the exhibition, the technical team of Hebei Messi Biology Co., Ltd. engaged in in-depth exchanges with composite material manufacturers, industry experts, and partners from around the world, sharing the company’s latest R&D achievements and application cases in the field of magnesium oxide materials. Many customers expressed high recognition for Messi’s products in helping them solve process challenges and improve the performance of their end products.
Mr. Sun, Sales Manager of Hebei Messi Biology Co., Ltd., stated: “We are extremely honored to participate in this industry grand event. Composite materials are a crucial frontier for developing new quality productive forces, and high-performance raw materials are the cornerstone of their innovation. Messi Biology will continue to focus on the R&D and production of high-end magnesium oxide materials, constantly deepening its application research in downstream composite materials. With higher quality and more professional products and services, we will join hands with industry chain partners to jointly promote the Chinese composite materials industry towards high-end and green development, contributing the ‘magnesium power’ of Chinese materials to global ‘intelligent manufacturing’.”