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Low-VOC, water-based formulation compliant with stringent environmental regulations including EU REACH and US EPA guidelines.
Excellent compatibility with standard waterborne epoxy resins, enabling stable emulsion formation and extended pot life.
Fast ambient-cure capability at 20–25°C with full hardness development within 7 days, without requiring forced drying.
Superior adhesion to concrete, steel, and aged coatings—even under high-humidity conditions (up to 85% RH).
Non-yellowing performance with outstanding UV resistance, ideal for both interior and exterior protective coatings.
Waterborne epoxy floor coatings for industrial facilities, warehouses, and pharmaceutical cleanrooms.
Concrete repair and protective topcoats in infrastructure projects including bridges and parking decks.
Anti-corrosive primers and intermediate coats for marine and offshore steel structures.
Low-emission epoxy systems for food processing plants and healthcare facility flooring.
Hybrid coating systems combining waterborne epoxy with acrylic or polyurethane topcoats.
| Chemical Type | Polyamide-modified aliphatic amine dispersion |
| Product Form | Aqueous dispersion |
| Appearance | Opaque off-white liquid |
| pH (25°C) | 8.2–8.8 |
| Solids Content (wt%) | 58–62% |
| Viscosity (mPa·s, Brookfield RVT, #3 spindle, 20 rpm, 25°C) | 1,200–1,800 |
| Density (g/cm³, 25°C) | 1.04–1.07 |
| Free Amine Value (mg KOH/g) | 210–240 |
Q1: What types of waterborne epoxy resins is YPWEC-0465 compatible with?
A: YPWEC-0465 is formulated for broad compatibility with standard anionic and non-ionic waterborne epoxy dispersions, including bisphenol-A and bisphenol-F based systems. Optimal performance is typically observed with resins having moderate to high epoxy equivalent weight (EEW) and stable colloidal dispersion characteristics.
Q2: How does YPWEC-0465 affect film formation and curing speed in ambient-cure coatings?
A: YPWEC-0465 enables efficient ambient-temperature crosslinking, supporting good film formation without coalescing agents in many formulations. Cure development is progressive, with initial handling strength typically achieved within 6–12 hours and full property development over 3–7 days depending on film thickness, humidity, and substrate temperature.
Q3: Can YPWEC-0465 be used in low-VOC or zero-VOC architectural or industrial maintenance coatings?
A: Yes — as a water-based curing agent with negligible VOC content, YPWEC-0465 supports the formulation of compliant low-VOC and zero-VOC coating systems. It is especially suited for interior architectural primers, concrete sealers, and corrosion-inhibitive maintenance coatings where regulatory and sustainability requirements are stringent.
Q4: Is pre-mixing or pH adjustment required before adding YPWEC-0465 to the epoxy dispersion?
A: YPWEC-0465 is supplied as a ready-to-use aqueous solution and generally requires no pre-dilution or pH adjustment. However, for optimal stability and reactivity, it is recommended to add the curing agent slowly under gentle agitation to the well-dispersed epoxy phase at near-neutral pH (6.5–8.5). Significant deviations from this range may affect shelf life or cure uniformity.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
