English
Español
tiếng việt
русский
Low-VOC, environmentally compliant formulation meeting global regulatory standards for waterborne coatings.
Excellent film-forming capability with high gloss retention and superior clarity after drying.
Outstanding flexibility and abrasion resistance, ideal for dynamic substrate applications.
Good compatibility with acrylic emulsions and crosslinkers for hybrid system formulation.
Stable dispersion at ambient temperature with broad pH tolerance (6.5–8.5) and low sensitivity to shear.
Waterborne leather finishing topcoats for footwear and upholstery.
Flexible packaging coatings requiring FDA-compliant indirect food contact performance.
High-performance wood coatings for furniture and interior architectural millwork.
Textile coating binders for durable, breathable technical fabrics.
Industrial maintenance coatings for metal substrates requiring corrosion-inhibiting adhesion.
| Chemical Type | Anionic aliphatic polyurethane dispersion |
| Product Form | Opaque white liquid |
| Appearance | Homogeneous milky dispersion, free of sediment or coagulum |
| Solids Content (wt%) | 30.0 ± 1.0% |
| pH (at 25°C) | 7.2 ± 0.3 |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm) | 150–300 |
| Particle Size (D50, nm) | 45–65 |
| Minimum Film Formation Temperature (MFFT) | 12–15°C |
Q1: What are the primary application areas for Chan Chem L-2908?
A: Chan Chem L-2908 is widely used in high-performance waterborne coatings for flexible substrates, including synthetic leather finishing, textile coatings, and soft-touch automotive interior trim. Its excellent film flexibility, abrasion resistance, and low-temperature performance make it especially suitable for applications requiring durable yet pliable films.
Q2: How does L-2908 compare to solvent-based polyurethane resins in terms of film properties?
A: L-2908 delivers comparable mechanical strength, elasticity, and chemical resistance to many conventional solvent-based systems, while offering significantly reduced VOC content and improved workplace safety. Film clarity, gloss retention, and adhesion to polar substrates are typically enhanced due to its well-balanced hydrophilic/hydrophobic structure.
Q3: Can L-2908 be crosslinked with external agents to improve performance?
A: Yes, L-2908 is compatible with common water-dispersible crosslinkers such as aziridine, carbodiimide, or blocked isocyanate types. Crosslinking enhances heat resistance, solvent resistance, and surface hardness—particularly beneficial in demanding industrial coating formulations.
Q4: Is L-2908 compatible with other waterborne polymers like acrylics or polyesters?
A: L-2908 demonstrates good compatibility with a range of waterborne acrylic dispersions and polyester dispersions, enabling formulators to tailor film properties such as hardness-toughness balance, drying behavior, and substrate adhesion without significant phase separation or viscosity instability.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
