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Exceptional hydrophilicity enabling stable dispersion in water-based polyurethane and acrylic systems.
Low VOC content compliant with stringent global environmental regulations including EU REACH and US EPA standards.
Fast ambient-cure reactivity without requiring external catalysts or elevated temperatures.
Excellent compatibility with anionic and non-ionic waterborne resins, minimizing phase separation risk.
Enhanced film hardness and chemical resistance post-cure, particularly against water and mild solvents.
Waterborne wood coatings for furniture and flooring requiring high clarity and mar resistance.
Industrial maintenance coatings for metal substrates in architectural and facility applications.
Leather finishing topcoats where flexibility, breathability, and low odor are critical.
Plastic coatings for ABS, PC, and PP substrates in automotive interior trim and consumer electronics.
High-performance waterborne can coatings for food and beverage packaging (non-contact layer).
| Chemical Type | Aliphatic polyisocyanate derivative (hydrophilically modified) |
| Product Form | Clear to pale yellow liquid |
| Appearance | Homogeneous, low-viscosity aqueous dispersion |
| pH (10% aqueous solution) | 7.2 – 7.8 |
| Solids Content (wt%) | 30 ± 2% |
| NCO Content (wt%) | 4.1 – 4.5% |
| Storage Stability (25°C) | ≥ 12 months in sealed original container |
| Primary Applications | Crosslinker for waterborne polyurethane dispersions (PUDs) and hybrid acrylic-PUD systems |
Q1: What is the primary function of WD-8100-1 in waterborne coating systems?
A: WD-8100-1 is a hydrophilic polyisocyanate-based curing agent designed to crosslink waterborne resins—such as acrylics, polyurethanes, or hybrid dispersions—enabling robust film formation, improved chemical resistance, and enhanced mechanical performance without requiring organic co-solvents.
Q2: Is WD-8100-1 compatible with high-solids or low-VOC formulations?
A: Yes. Its hydrophilic nature and water dispersibility support formulation flexibility in low-VOC and high-solids waterborne systems, helping maintain viscosity stability and minimizing the need for volatile coalescing agents.
Q3: How does WD-8100-1 differ from conventional hydrophobic polyisocyanate curing agents?
A: Unlike traditional hydrophobic isocyanates, WD-8100-1 features built-in hydrophilic groups that enable stable dispersion in water without added emulsifiers, resulting in more uniform crosslinking, reduced phase separation risk, and improved compatibility with sensitive aqueous polymer dispersions.
Q4: What storage conditions are recommended for optimal shelf life?
A: Store in original sealed containers at temperatures between 5°C and 30°C, away from moisture, direct sunlight, and strong oxidizing agents. Prolonged exposure to humidity or elevated temperatures may affect dispersion stability and reactivity.
Q5: Can WD-8100-1 be used in ambient-cure applications?
A: Yes—WD-8100-1 is formulated for ambient and mild thermal cure profiles (e.g., 20–60°C), offering practical pot life and efficient crosslinking without demanding high-bake conditions, making it suitable for industrial maintenance coatings and functional interior finishes.
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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
