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Waterborne aliphatic polyurethane dispersion offering excellent UV resistance and long-term gloss retention.
Low VOC formulation compliant with stringent global environmental regulations including EU REACH and US EPA guidelines.
Good hydrolytic stability and freeze-thaw resistance for reliable storage and handling in diverse climatic conditions.
Excellent compatibility with acrylic dispersions, crosslinkers, and common waterborne additives.
Provides balanced film hardness, flexibility, and abrasion resistance suitable for demanding protective coatings.
High-performance waterborne wood coatings for furniture, flooring, and cabinetry.
Industrial maintenance coatings for metal substrates requiring corrosion resistance and aesthetic durability.
Interior architectural coatings where low odor, fast drying, and low-emission performance are critical.
Coatings for plastic substrates including ABS and PC, enabling durable topcoats with good adhesion.
Hybrid systems combined with acrylic or melamine crosslinkers for enhanced chemical and mar resistance.
| Chemical Type | Aliphatic waterborne polyurethane dispersion |
| Product Form | Opaque white liquid |
| Appearance | Homogeneous milky dispersion, free of sediment or gel particles |
| pH (at 25°C) | 7.8 – 8.5 |
| Solids Content (wt%) | 34.5 – 35.5 |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm, 25°C) | 150 – 500 |
| Particle Size (D50, nm) | 80 – 120 |
| Freeze-Thaw Stability | Passed (3 cycles: −18°C × 16 h / +23°C × 8 h) |
Q1: What is the primary function of DAOTAN TW 6495/35WA in polyurethane systems?
A: DAOTAN TW 6495/35WA is a waterborne polyurethane dispersion designed to serve as a film-forming binder or reactive modifier, enhancing flexibility, abrasion resistance, and adhesion in coatings and sealants—particularly where low VOC content and aqueous processing are required.
Q2: Is DAOTAN TW 6495/35WA compatible with common crosslinkers used in industrial PU coatings?
A: Yes, it is formulated to be compatible with standard aliphatic polyisocyanate crosslinkers, including HDI- and IPDI-based blocked or aqueous dispersions. Compatibility and cure performance should be verified experimentally within the final formulation due to sensitivity to pH, ionic strength, and mixing sequence.
Q3: Can this resin be used in direct food-contact applications?
A: DAOTAN TW 6495/35WA is not pre-certified for direct food contact. Its suitability for such applications depends on full formulation compliance with relevant regional regulatory frameworks (e.g., FDA 21 CFR, EU Plastics Regulation), and requires comprehensive migration testing and approval by the end-user’s regulatory team.
Q4: How should DAOTAN TW 6495/35WA be stored and handled to maintain stability?
A: Store in tightly sealed containers at temperatures between 5 °C and 30 °C, away from freezing conditions and prolonged exposure to high heat or direct sunlight. Avoid contamination with incompatible solvents, strong acids/bases, or metal ions that may induce coagulation or viscosity drift.
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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
