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What are the main applications of waterborne epoxy resin?


What are the main applications of waterborne epoxy resin?

  Main applications of waterborne epoxy resins:

 Waterborne epoxy resin

  1. Modification of hydrophilic compounds, including emulsified asphalt, modification of acrylates and polyurethanes, filament bonding of fiber materials, and curing of prepregs.

  2. Waterborne epoxy resins, featuring solvent-free, low-viscosity, and high-permeability properties, are primarily used as solvent-free, low-viscosity, cost-effective, and high-filler-content primers and intermediate coats for high-solids, high-performance coatings such as fluorocarbon, acrylic, and polyurethane systems.

  3. Cement concrete and other artificial stones, as well as the consolidation of inorganic materials, can also be used for reinforcing, waterproofing, and corrosion-resistant composites applied to wood, paper, and other organic fiber materials.

  4. Hydrophilic epoxy resins will be widely used in the construction, maintenance, and upkeep of roads, bridges, airports, dams, and other structures, particularly in environments with water or high humidity. More than 50% of hydrophilic epoxy resins will be reserved for specialized applications in dry environments, such as joint grouting and joint beautification.

  5. Emulsified epoxy resin is primarily used as a primer in certain steel structure coating processes.

  The development and application prospects of waterborne epoxy resins—China is a country that places great importance on the water-based formulation of epoxy resins, and there are three key reasons for this:

  1. In terms of environmental protection, water-based epoxy resins have accumulated significant "environmental debt," which now needs to be addressed. To tackle this issue, we must adopt stringent enforcement measures that surpass even the highest international standards—often in a drastic, cliff-like manner. While these approaches may sometimes seem unscientific or unreasonable, they are unfortunately the only viable option available at present. As a result, this phenomenon is likely to persist over the long term, driving the rapid expansion of water-soluble modification technologies.

  2. China's massive infrastructure needs—particularly the sheer number of construction projects, along with its extensive transportation networks, dams, and buildings—are among the largest in the world. The organic transformation and integration of civil engineering will continue to be an irreversible development trend for the foreseeable future. When it comes to selecting water-based epoxy resins, factors like environmental friendliness, safety, practicality, and durability remain critical considerations.

  3. China's production and consumption of alkaline epoxy resins are expected to remain strong for the foreseeable future. From a product structure perspective, China is likely to be the world's largest producer and user of waterborne epoxy resins. The country's total output will account for 25% of its domestic epoxy resin market, while accounting for more than 70% of global consumption of waterborne epoxy resins.

  Production capacity, manufacturing technology, and R&D—China is already among the global leaders in potential varieties of ordinary waterborne epoxy resins, whether emulsified or synthetically produced. In recent years, thanks to the relentless efforts of ambitious private entrepreneurs and pioneering scientists, significant breakthroughs have been made in emulsifiers and technologically advanced synthetic additives. Within two years, China is set to achieve major advancements in both the research and industrial-scale production of key polybutadiene-based resins. And within three years, its production capacity, output, and market consumption are expected to rank among the world’s top players—on par with China’s current position in the global epoxy resin industry.

  Epoxy resin products represent an unwritten global division of labor: molecular reorganization has historically taken place in the U.S., where basic raw materials are synthesized; Germany excels in refining and improving ingredient formulations; and collaborative R&D drives advancements in composite applications. Yet, the key application markets remain firmly rooted in China—particularly as the country pioneers the development of waterborne epoxy resins.