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Low-VOC formulation compliant with global environmental regulations including EU REACH and US EPA standards.
Excellent water dispersibility and storage stability without co-solvents or added surfactants.
Fast ambient-air drying with good early hardness development and film integrity.
Superior compatibility with acrylic emulsions, polyurethane dispersions, and amino crosslinkers.
High gloss retention and outstanding resistance to yellowing upon UV exposure.
Waterborne industrial maintenance coatings for metal structures and equipment.
Interior and exterior architectural trim and woodwork paints requiring alkyd-like aesthetics.
Hybrid waterborne coatings for agricultural and construction machinery.
Refinish coatings for furniture and cabinetry where low odor and rapid handling are critical.
| Chemical Type | Water-reducible alkyd resin (modified with hydrophilic groups) |
| Product Form | Aqueous dispersion |
| Appearance | Opaque, off-white to light amber liquid |
| pH (10% aqueous solution) | 7.8 – 8.4 |
| Solids Content (wt%) | 48.0 ± 1.0% |
| Viscosity (Brookfield RVT, #3 spindle, 25°C) | 800 – 1,200 cP |
| Minimum Film Formation Temperature (MFFT) | 12 – 15°C |
| Free Formaldehyde | < 50 ppm |
Q1: What is the primary function of YPWK-31W05L in waterborne coating formulations?
A: YPWK-31W05L serves as a film-forming binder that enhances gloss, hardness, and substrate adhesion in low-VOC architectural and industrial waterborne coatings. It contributes alkyd-derived durability while maintaining compatibility with acrylic dispersions and other common aqueous polymer systems.
Q2: Is YPWK-31W05L compatible with common co-binders and additives used in waterborne systems?
A: Yes — it demonstrates good compatibility with acrylic emulsions, vinyl acetate copolymers, associative thickeners, and most standard defoamers and dispersants. Compatibility testing under actual formulation conditions is recommended to confirm stability and performance synergy.
Q3: How does YPWK-31W05L contribute to drying and curing behavior?
A: As a self-crosslinking waterborne alkyd, it undergoes oxidative crosslinking upon film formation, providing progressive hardness development and improved block resistance over time. Initial drying is fast due to water evaporation, while full property development occurs over several days depending on temperature and humidity.
Q4: Can YPWK-31W05L be used in direct-to-metal (DTM) applications?
A: Yes — it is suitable for DTM interior and mild exterior applications where moderate corrosion resistance and mechanical robustness are required. For demanding corrosion protection, it is typically combined with appropriate rust-inhibitive pigments and formulated with enhanced barrier resins.
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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
