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High solids content for reduced VOC emissions and improved coating efficiency
Excellent chemical resistance to solvents, cleaning agents, and mild acids
Superior flexibility and impact resistance without compromising hardness
Good compatibility with common polyisocyanates and acrylic co-resins
Optimized for ambient- and forced-dry curing systems in industrial applications
Industrial maintenance coatings for metal structures and equipment
Protective topcoats for agricultural and construction machinery
Coatings for railcar exteriors and underbody components
General-purpose high-performance OEM finishes
Refinish coatings requiring durability and gloss retention
| Chemical Type | Aliphatic polyurethane resin (hydroxyl-functional) |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Primary Applications | Two-component (2K) polyurethane topcoats and clearcoats |
| Key Features | High hydroxyl value, low viscosity, excellent weatherability |
| Benefits | Enhanced film formation, extended pot life, good recoatability |
| Solvent System | Aromatic-free, designed for low-VOC formulations |
| Storage Stability | At least 12 months at 25 °C in sealed original container |
Q1: What is the primary function of DAOTAN TW 1236/40WANEP in polyurethane systems?
A: DAOTAN TW 1236/40WANEP is a waterborne polyurethane dispersion designed to serve as a film-forming binder or reactive modifier, enhancing flexibility, abrasion resistance, and substrate adhesion—particularly in coatings and adhesives requiring low-VOC performance.
Q2: Is DAOTAN TW 1236/40WANEP compatible with common crosslinkers used in industrial PU coatings?
A: Yes, it shows good compatibility with standard aqueous crosslinkers such as aziridine, carbodiimide, and blocked isocyanate types; however, compatibility and cure profile 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 1236/40WANEP is not pre-qualified for direct food contact; its suitability depends on full formulation compliance with relevant regional regulatory frameworks, and end-use testing is required before any food-contact claim can be made.
Q4: How should DAOTAN TW 1236/40WANEP be stored 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 direct sunlight; avoid contamination with incompatible materials such as strong acids, bases, or high-solids organic solvents.
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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
