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Low-VOC, environmentally compliant formulation meeting stringent global regulatory requirements.
Excellent compatibility with a broad range of waterborne polyurethane dispersions (PUDs) and acrylic emulsions.
Fast ambient-cure kinetics enabling rapid handling strength development without forced drying.
Superior film hardness and chemical resistance after full crosslinking, including improved water and alkali resistance.
Stable dispersion in water with low viscosity, facilitating easy metering and homogeneous mixing in production.
High-performance waterborne wood coatings for furniture, flooring, and cabinetry.
Industrial maintenance coatings for metal substrates requiring corrosion protection and durability.
Leather finishing systems demanding flexibility, abrasion resistance, and eco-certification.
Textile and nonwoven coatings where breathability, soft hand feel, and wash-fastness are critical.
Automotive interior trim coatings requiring low odor, VOC compliance, and mar resistance.
| Chemical Type | Aliphatic polyisocyanate-based crosslinker (blocked or latent) |
| Product Form | Aqueous dispersion |
| Appearance | Clear to slightly hazy, colorless to pale yellow liquid |
| pH (1% aqueous solution) | 7.0 – 8.5 |
| Solids Content (wt%) | 30.0 ± 2.0 |
| Viscosity (mPa·s, 25°C, Brookfield LVT) | 150 – 400 |
| Storage Stability (sealed, 5–30°C) | ≥ 6 months |
| Primary Applications | Crosslinking agent for waterborne polyurethane and hybrid PUD/acrylic coatings |
Q1: What types of waterborne polyurethane dispersions (PUDs) is YL-W6500 compatible with?
A: YL-W6500 is designed for use with a broad range of anionic and non-ionic aromatic and aliphatic PUDs. Compatibility should be verified experimentally in the target formulation, as performance may vary depending on PUD chemistry, particle size, and ionic stabilization.
Q2: How does YL-W6500 affect film formation and final film properties?
A: As a low-VOC, water-dispersible curing agent, YL-W6500 promotes crosslinking during ambient or mild thermal drying, enhancing hardness, chemical resistance, and abrasion resistance without compromising flexibility or clarity in the cured film.
Q3: What is the recommended storage condition and shelf life?
A: Store YL-W6500 in tightly sealed original containers at temperatures between 5 °C and 30 °C, protected from frost and direct sunlight. Under proper storage conditions, the typical shelf life is 12 months from date of manufacture.
Q4: Can YL-W6500 be used in coatings intended for indirect food contact applications?
A: YL-W6500 is formulated without intentionally added heavy metals, formaldehyde, or alkylphenol ethoxylates. While it is not pre-approved for any specific food-contact regulation, its composition supports evaluation toward compliance where permitted by local regulatory frameworks — full assessment requires formulation-level testing and regulatory review.
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E-mail: wangxingqiang@ericwchem.com
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