Epoxy resin hydration refers to the process of dispersing epoxy resins in water—whether as particles, droplets, or colloids—to create a stable dispersion system. Since the 1950s, research on waterborne epoxy resins has been conducted internationally. These systems typically contain a curing agent. Waterborne epoxy resin Widely used as a coating.

　　Currently, the applications of waterborne epoxy resins mainly include the following areas:

　　1. Concrete Sealing Primer

　　Water-based epoxy resin coatings can be applied to damp or freshly poured concrete surfaces, offering excellent adhesion to concrete. They effectively seal the capillaries in concrete against water vapor and help prevent alkali efflorescence. These coatings are ideal for use as a concrete sealing primer. Once applied as a primer, they can be topped with either solvent-based or water-based epoxy floor coatings.

　　II. Industrial Floor Coatings

　　Industrial floor coatings are a key application of water-based epoxy resin paints. Waterborne epoxy resins have low odors and their coated surfaces are easy to clean. They are particularly well-suited for use in hospitals, food factories, supermarkets, dairy plants, and cosmetic manufacturers. Moreover, if a secondary decorative finish is required, it won’t compromise the recoating performance—both old and new layers will continue to exhibit excellent adhesion.

　　3. Wood Coatings

　　The waterborne epoxy resin coating used is a two-component system. After curing, the resulting film exhibits high hardness and excellent scratch resistance. The prepared clear coat can effectively replace the solvent-based polyurethane crystal floor coatings and polyester furniture paints currently widely used in the market for wooden flooring applications. Additionally, this coating can serve as a viable alternative to solvent-based epoxy and polyurethane magnetic paints in kitchens, furniture production, and machinery equipment manufacturing.

　　4. Anti-corrosion Coating

　　Waterborne epoxy resin anti-corrosion coatings have already been commercialized, including water-based epoxy iron oxide rust-proof paint, water-based epoxy zinc phosphate rust-proof paint, water-based epoxy rich-zinc primer, and water-based epoxy mica rust-proof paint. Compared to commonly available acrylic- or ethylene-propylene emulsion-based rust-proof paints and waterborne epoxy ester rust-proof coatings on the market, waterborne epoxy rust-proof paints offer significantly improved performance. This type of coating is rapidly gaining traction in international markets as a cutting-edge water-based formulation. After years of development, waterborne epoxy anti-corrosion coatings have now expanded into applications previously dominated by solvent-based epoxy anti-corrosion systems—and abroad, these coatings have even begun to be classified under the category of heavy-duty anti-corrosion materials.

　　5. Waterproofing Materials, Anti-seepage and Leak-stopping Materials

　　Water-based epoxy resin coatings can be used as a waterproofing material when combined with cement and sand. The cross-linked network of the epoxy resin, coupled with the hydration and curing of cement, gives the waterproofing material excellent seepage-proofing and leak-stopping performance. It’s ideal for repairing cracks in roofs and floors, ensuring no water leakage occurs even hours after application.

　　6. Cement Mortar Repair Material

　　Epoxy emulsion polymer cement mortar is a type of polymer-cement-based repair material. It exhibits excellent compatibility and strong adhesion with materials like cement and sand. This product boasts high mechanical strength, superior durability, and ease of application. Additionally, it excels in bonding and repairing even under wet or submerged conditions. Widely used in hydraulic engineering projects such as dams and sluices, as well as in bridge and road maintenance, it delivers outstanding reinforcement and anti-seepage performance.

　　7. Adhesives

　　The mixing ratio for waterborne epoxy resin coatings isn’t particularly strict. Typically, curing can occur within an epoxy-to-amine hydrogen ratio range of 0.7:1 to 1.3:1, eliminating the need for precise measurement and blending. As an adhesive, waterborne epoxy resin is well-suited for bonding new and old concrete, repairing precast cement products, and serving as a bonding agent in paper-plastic composites.