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Over the next five years, the application of epoxy resins in the coatings sector will witness significant structural growth. As a core supporting material, the demand for curing agents will increase synchronously. The following analysis is conducted from three dimensions: application trends, driving factors, and demand forecast for curing agents. I. Application Trends of Epoxy Resin Coatings: Parallel Development of Environmental Upgrading and Application Scenario Expansion 1. Environmental Policies Drive Water-Based and High-Solid-Content Transformation Stringent global restrictions on VOC (Volatile Organic Compound) emissions (e.g., the EU REACH Regulation, China’s Emission Standards for Air Pollutants from the Coatings, Inks, and Adhesives Industry) are driving the transformation of epoxy resin coatings toward water-based and high-solid-content directions. Benefiting from its low-VOC characteristics, water-based epoxy resin coatings are seeing a rapid increase in penetration in fields such as building floors and industrial anti-corrosion. It is expected that the global water-based curing agent market will reach 1.36 billion US dollars by 2031, with a Compound Annual Growth Rate (CAGR) of 5.8%. Meanwhile, high-solid-content coatings, due to their high construction efficiency and excellent performance, are experiencing significant demand growth in large-scale infrastructure projects such as wind power equipment and bridges. 2. Explosive Demand in Emerging Fields Wind Power Equipment: Driven by the "dual carbon" policy (carbon peaking and carbon neutrality), China’s wind power installed capacity is expected to reach 650 GW by 2025. The demand for epoxy resin coatings for wind turbine blades will exceed 1.2 million tons, leading to a surge in the demand for anhydride-based curing agents. New Energy Vehicles: Scenarios such as battery pack protection and charging pile insulation have a strong demand for high-weather-resistance epoxy coatings. It is expected that the relevant market scale will exceed 5 billion yuan by 2025, with the annual demand for amine-based curing agents growing by 25%. Yueyang Zhongzhan Technology specializes in the production of amine-based curing agents and epoxy accelerators (DMP-30/K54). For inquiries, please contact us via phone or email: 13975090964. Electronic Packaging: The upgrading of the 5G base station and semiconductor industries is driving the demand for electronic-grade epoxy coatings. The market scale is expected to reach 8–10 billion yuan by 2025, with the proportion of latent curing agents rising to 15%. 3. Technological Iteration Toward High Performance and Functionalization Technological breakthroughs such as low-temperature curing (the curing agents produced by Yueyang Zhongzhan Technology can still cure at -5℃) and resistance to extreme environments (e.g., anhydride systems that withstand high temperatures of up to 180℃) will promote the application of epoxy resin coatings in high-end fields such as aerospace and hydrogen energy storage and transportation. At the same time, nano-modification technologies (e.g., graphene-reinforced coatings) can improve the wear resistance of coatings by more than 30%, further expanding application scenarios. II. Growth Logic for Curing Agent Demand: Resonance Between Market Expansion and Structural Upgrading 1. Market Scale Expansion Drives Basic Demand The global epoxy coating market is expected to grow from 39.549 billion US dollars in 2024 to 77 billion US dollars in 2030, with a CAGR of 4.99%. Assuming the dosage ratio of curing agents to epoxy resins is approximately 1:10 (dominated by amine-based types), the demand for curing agents will reach 770,000 tons by 2030. As a core growth engine, China’s epoxy coating market reached 124.978 billion yuan in 2024 and is expected to exceed 200 billion yuan by 2030, corresponding to a curing agent demand of about 200,000 tons. 2. Application Structure Upgrading Drives Demand for High-End Curing Agents Amine-Based Curing Agents: They will remain dominant (accounting for over 70%), but the proportion of high-performance modified amines (e.g., low-viscosity, low-toxicity products) will increase from 45% in 2024 to 60% in 2030, mainly driven by the automotive primer and wind turbine blade markets. For example, the high-temperature-resistant curing agent ZH150 produced by Yueyang Zhongzhan Technology can withstand temperatures up to 150℃, featuring excellent performance and has been applied in well-known automobile manufacturers. Anhydride-Based Curing Agents: Demand in the wind turbine blade and electronic packaging fields is surging. The market scale is expected to reach 1.5 billion yuan by 2030, with a CAGR of 12%. Bio-Based Curing Agents: Driven by sustainable development policies, the penetration rate of cashew phenol-based and other bio-based products will increase from 5% in 2024 to 15% in 2030, mainly used in green building coatings. 3. Intensified Regional Market Differentiation Creates Structural Opportunities The Asia-Pacific region (especially China) contributes over 60% of the global incremental demand, while the European and American markets focus more on high-endization and environmental compliance. For instance, the demand for anhydride-based curing agents for wind turbine blades in China grows by 18% annually, while the European automotive coatings market tends to prefer water-based amine-based curing agents. Emerging markets such as India and Southeast Asia, driven by accelerated industrialization, see an average annual growth of over 10% in epoxy coating demand, promoting the expansion of localized production capacity for amine-based curing agents. III. Quantitative Forecast of Curing Agent Demand and Risk Tips 1. Demand Forecast Model Baseline Scenario: Assuming a 5% annual growth rate of epoxy resin coatings and a 1:10 dosage ratio of curing agents to resins, the global demand for curing agents will increase from 550,000 tons in 2025 to 700,000 tons in 2030, with a CAGR of approximately 4.8%. Optimistic Scenario: If the demand for wind power and new energy vehicles exceeds expectations, coupled with the increased penetration of water-based curing agents, the CAGR could reach 5.5%, with demand hitting 750,000 tons by 2030. Pessimistic Scenario: If raw material price fluctuations or economic recession suppress investment, the CAGR may drop to 3.5%, with demand reaching around 650,000 tons by 2030. 2. Key Variables and Risks Raw Material Costs: Oversupply of bisphenol A may lead to low epoxy resin prices, stimulating coating demand but compressing profit margins; epichlorohydrin, affected by glycerol price fluctuations, may push up the cost of high-end curing agents. Technological Substitution: The risk of substitution by polyurethane and acrylic resins in some fields (e.g., automotive topcoats) should be watched, especially in price-sensitive markets. Overcapacity: The expansion of amine-based curing agent production capacity in China (e.g., Anhui Hengtai’s new 5,000-ton/year capacity) may intensify price competition. IV. Conclusion Over the next five years, driven by environmental policies, emerging industries, and technological upgrading, epoxy resin coatings will maintain steady growth, with a synchronous increase in curing agent demand. Amine-based curing agents will remain dominant, but anhydride-based and bio-based products will present significant structural opportunities in specific fields. Enterprises need to pay attention to risks such as raw material price fluctuations, regional market differentiation, and technological substitution, and seize opportunities through differentiated product layouts (e.g., low-temperature curing and high-solid-content systems) and capacity optimization (e.g., localized production in Southeast Asia). It is expected that by 2030, the global demand for curing agents for epoxy coatings will reach 650,000–750,000 tons, with China accounting for over 40% and becoming the world’s largest market.   Yueyang Zhongzhan Technology specializes in the production of amine-based curing agents and epoxy accelerators (DMP-30/K54). For inquiries, please contact us via phone or email: 13975090964.

Recently, Zhongzhan Technology has launched a new round of expansion projects, covering the expansion and upgrading of R&D laboratories, the construction of raw material production lines, and the building of modern storage workshops. This initiative aims to strengthen the company’s core competitiveness and accelerate the layout of its industrial chain. As a key measure for the company to deepen its presence in the fine chemical sector, this expansion marks a crucial step forward in its technological R&D and cost control efforts. Based on the company’s existing 2,000-square-meter laboratory building, a 500-square-meter expansion area will be added this time, focusing on upgrading the polymer material analysis laboratory and the formulation R&D center. After the expansion, the laboratory building will introduce advanced equipment such as Dynamic Mechanical Analyzers (DMA) and High-Performance Liquid Chromatographs (HPLC), enabling a full-process R&D closed loop from raw material purity testing to finished product performance verification. It is expected that R&D efficiency will increase by 30%, providing stronger technical support for the iteration of new-type epoxy curing agents and special amine-based products. Simultaneously, the construction of a new 20-mu (approximately 13,333-square-meter) factory area is also advancing, with plans to build a methanol production line and supporting storage facilities. After the commissioning of this production line, the company will achieve self-sufficiency in methanol—a core raw material. Through vertical integration of the supply chain, it is expected to reduce raw material procurement costs by 15%-20%, significantly enhancing the market competitiveness of its products. In the meantime, the new factory area will adopt intelligent control systems to realize full-process automation in raw material storage & transportation and reaction regulation, meeting high standards for environmental protection and safety.   This expansion is not only a strategic layout in response to the upgrading of the new material industry but also a concrete practice of the company’s "dual-driver (technology + cost)" development model. In the future, with a more comprehensive R&D system and a more optimized cost structure, the company will continue to provide high-quality products for fields such as coatings, adhesives, wind power, electronics, and composite materials, contributing to the green and low-carbon development of the epoxy resin and polyurethane industries.  

The following explanation is divided into two aspects: 1. Principle of Use 650 polyamide curing agent is a low-molecular-weight polyamide produced by the reaction of fatty acid dimers with polyamines. Its molecular structure contains a large number of primary amino groups (-NH?) and secondary amino groups (-NH-), and these reactive amino groups can undergo a ring-opening addition reaction with the epoxy groups (-C-O-C-) in epoxy resins:   Primary amino groups first react with epoxy groups, opening the ring to form hydroxyl groups (-OH) and secondary amine structures; The generated secondary amino groups further react with other epoxy groups, continuing the ring-opening process and forming a cross-linked structure; Finally, through three-dimensional network crosslinking, the epoxy resin is transformed from a liquid state to a solid state, and at the same time, it is tightly combined with reinforcements (such as fibers, fabrics) in composite materials, endowing the materials with mechanical strength, chemical resistance and other properties. 2. Feeding Ratio The ratio is mainly calculated based on the epoxy equivalent weight (EEW) of the epoxy resin (millimoles of epoxy groups per gram of resin) and the active hydrogen equivalent weight (AHEW) of 650 polyamide (millimoles of active hydrogen per gram of curing agent). In practical applications, the mass ratio is often used for simplification:   For commonly used bisphenol A epoxy resins (e.g., E-44 with an epoxy equivalent weight of approximately 210-240; E-51 with an epoxy equivalent weight of approximately 180-200), the addition amount of 650 polyamide curing agent is usually 20%-40% (relative to the mass of epoxy resin). Example: 100 parts of E-51 epoxy resin mixed with 30-40 parts of 650 polyamide can cure at room temperature (curing time is about 24-72 hours), and the product has good flexibility; If it is necessary to accelerate the curing speed, a small amount of accelerator (e.g., DMP-30, with an addition amount of 1%-3% of the resin mass) can be added. In this case, the dosage of 650 polyamide can be appropriately reduced to 20-30 parts.   The specific ratio needs to be adjusted according to the composite material’s requirements for curing speed, hardness and flexibility. It is recommended to verify through experiments to match the actual process needs.   Yueyang Zhongzhan Technology produces 650 polyamide curing agent and DMP-30 epoxy accelerator, with stable quality that has been recognized by customers for many years. Welcome to inquire. Contact: 13975090964.