English
Español
tiếng việt
русский
Excellent film-forming capability with high gloss and clarity after drying.
Outstanding flexibility and abrasion resistance for demanding coating applications.
Low VOC content (< 50 g/L), compliant with stringent environmental regulations.
Good compatibility with acrylic emulsions and water-based crosslinkers.
Stable dispersion at pH 7.5–8.5 and ambient storage conditions (5–35°C).
High-performance waterborne wood coatings for furniture and flooring.
Leather finishing topcoats requiring soft hand feel and hydrolysis resistance.
Flexible packaging inks and overprint varnishes for PE/PP substrates.
Textile coating binders for waterproof and breathable functional fabrics.
Industrial maintenance coatings for metal and concrete surfaces.
| Chemical Type | Anionic aliphatic polyurethane dispersion |
| Product Form | Opaque white to light yellow liquid |
| Appearance | Homogeneous, slightly viscous dispersion |
| Solids Content (wt%) | 30.0 ± 1.0% |
| pH (25°C) | 7.8–8.3 |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm) | 150–350 |
| Particle Size (D50, nm) | 80–120 |
| Minimum Film-Forming Temperature (MFFT) | 12–15°C |
Q1: What are the primary application areas for Chan Chem L-2842?
A: Chan Chem L-2842 is widely used in waterborne coatings for flexible substrates—including synthetic leather, textiles, and automotive interior trim—where excellent film flexibility, abrasion resistance, and low-VOC performance are required.
Q2: Is L-2842 compatible with other waterborne resins or additives?
A: Yes, L-2842 demonstrates good compatibility with common waterborne acrylics, polyacrylates, and crosslinkers such as aziridines or carbodiimides; however, compatibility should always be verified experimentally in the final formulation due to variations in pH, ionic strength, and shear history.
Q3: How does L-2842 perform under high-humidity curing conditions?
A: As a waterborne polyurethane dispersion, L-2842 forms coherent films effectively at ambient temperature and moderate to high relative humidity; elevated humidity may slightly extend drying time but generally supports uniform coalescence and film integrity without blushing or clouding.
Q4: Can L-2842 be used in formulations requiring FDA-compliant or food-contact-safe finishes?
A: L-2842 is not pre-certified for direct food contact applications; its suitability for regulated end uses depends on full formulation assessment, including all co-components and intended migration conditions—consult regulatory experts and conduct appropriate testing before claiming compliance.
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
