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Excellent film-forming capability with high gloss and clarity after drying.
Superior abrasion and scratch resistance for demanding end-use environments.
Low VOC content, compliant with stringent environmental regulations including EU REACH and US EPA guidelines.
Good compatibility with acrylic emulsions and water-based crosslinkers for formulation flexibility.
Stable viscosity profile over extended storage (≥6 months at 5–30°C) without gelation or phase separation.
High-performance water-based wood coatings for furniture and flooring.
Leather finishing topcoats requiring soft hand feel and hydrolytic stability.
Industrial plastic coatings for automotive interior trim and consumer electronics housings.
Waterborne overprint varnishes for flexible packaging and label laminates.
Textile coating binders for durable, breathable technical fabrics.
| Chemical Type | Anionic aliphatic polyurethane dispersion |
| Product Form | Ready-to-use aqueous dispersion |
| Appearance | Translucent milky liquid, slight blue opalescence |
| pH (25°C) | 7.8 – 8.4 |
| Solid Content (wt%) | 28.0 ± 1.0% |
| Viscosity (mPa·s, Brookfield RVT, #2 spindle, 20 rpm, 25°C) | 150 – 350 |
| Density (g/cm³, 25°C) | 1.02 – 1.05 |
| Minimum Film Formation Temperature (MFFT) | ≤ 15°C |
Q1: What are the primary application areas for Chan Chem L-2955?
A: Chan Chem L-2955 is widely used in high-performance waterborne coatings for flexible substrates, including textile finishing, synthetic leather topcoats, and soft-touch automotive interior coatings. Its excellent film-forming ability and low-temperature coalescence make it especially suitable for heat-sensitive materials.
Q2: How does L-2955 compare to solvent-based polyurethane resins in terms of performance and handling?
A: L-2955 delivers comparable mechanical durability, abrasion resistance, and elasticity to many solvent-based systems, while offering significantly lower VOC content and improved workplace safety. It requires no specialized ventilation or explosion-proof equipment during handling, though formulation stability and drying kinetics may differ and should be optimized during scale-up.
Q3: Can L-2955 be blended with other waterborne polymers such as acrylics or styrene-acrylics?
A: Yes, L-2955 exhibits good compatibility with a range of common waterborne acrylic and styrene-acrylic dispersions. Blending can help balance cost, hardness, and flexibility—however, compatibility testing under intended storage and processing conditions is recommended to ensure colloidal stability and avoid phase separation.
Q4: What pH range is recommended for formulating with L-2955?
A: L-2955 performs best in formulations maintained between pH 7.5 and 9.0. Outside this range, viscosity drift or reduced shelf life may occur. Adjustments should be made using mild, non-volatile bases such as AMP-95® or sodium hydroxide solution at low concentration, followed by thorough mixing and stability monitoring.
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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
