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Excellent film-forming capability with high gloss and clarity.
Superior water resistance and chemical resistance after film curing.
Low VOC content, compliant with stringent environmental regulations.
Good compatibility with acrylic emulsions and other waterborne systems.
Enhanced flexibility and abrasion resistance for demanding coating applications.
Waterborne wood coatings for furniture and flooring.
High-performance industrial maintenance coatings.
Leather finishing topcoats requiring soft hand and durability.
Plastic substrate coatings for automotive interior trim.
Textile finishing binders for wash-fast, flexible finishes.
| Chemical Type | Aliphatic waterborne polyurethane dispersion |
| Product Form | Opaque white liquid |
| Appearance | Homogeneous milky dispersion |
| Solids Content | 30–32 wt% |
| pH | 7.8–8.5 |
| Viscosity (Brookfield, #2 spindle, 20 rpm, 25°C) | 150–400 mPa·s |
| Density (25°C) | 1.02–1.05 g/cm³ |
| Minimum Film Formation Temperature (MFFT) | ≈15°C |
Q1: What are the primary application areas for Chan Chem L-2911?
A: Chan Chem L-2911 is widely used in waterborne industrial coatings, including flexible packaging laminating adhesives, textile finishing systems, and protective topcoats for leather and synthetic fabrics. Its balanced film-forming ability and mechanical resilience make it especially suitable for applications requiring good flexibility, abrasion resistance, and low-VOC performance.
Q2: Is L-2911 compatible with common waterborne acrylic or epoxy dispersions?
A: Yes, L-2911 demonstrates good compatibility with many standard waterborne acrylic emulsions and epoxy dispersions when blended under controlled pH and shear conditions. Compatibility testing is recommended for each specific formulation to ensure colloidal stability and final film integrity.
Q3: How should L-2911 be stored and handled to maintain optimal performance?
A: Store L-2911 in its original sealed container at temperatures between 5°C and 30°C, away from freezing conditions and direct sunlight. Avoid prolonged exposure to high humidity during handling, and ensure thorough mixing before use if sedimentation occurs after extended storage.
Q4: Does L-2911 require a coalescing agent or additional crosslinker for full film development?
A: L-2911 is designed as a self-crosslinking, anionic waterborne polyurethane dispersion and typically forms continuous films without added coalescents under standard drying conditions. However, performance-enhancing crosslinkers—such as aziridine or carbodiimide types—may be incorporated depending on end-use requirements for chemical resistance or thermal stability.
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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
