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High hydroxyl functionality for excellent crosslink density with melamine and polyisocyanate curing agents.
Optimized molecular weight distribution for superior flow, leveling, and gloss development in high-performance coatings.
Low viscosity in solvent-borne systems, enabling high solids formulation without sacrificing application properties.
Excellent compatibility with common acrylic, polyester, and cellulose ester resins used in industrial coating blends.
Consistent batch-to-batch reproducibility meeting stringent quality control standards for OEM and refinish applications.
Automotive original equipment manufacturer (OEM) topcoats and clearcoats.
Automotive refinish basecoats and two-component (2K) clearcoats.
Industrial maintenance coatings for metal substrates requiring durability and weather resistance.
General-purpose coil coatings where high gloss and mechanical robustness are critical.
Powder coating hybrid systems leveraging hydroxyl reactivity for improved film formation.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in aromatic hydrocarbon solvent blend |
| Appearance | Clear, pale yellow to colorless liquid |
| Hydroxyl Value (mg KOH/g) | 85–95 |
| Acid Value (mg KOH/g) | < 5 |
| Solids Content (% w/w) | 64 ± 1 |
| Viscosity (mPa·s at 25°C) | 3,000–5,000 |
| Density (g/cm³ at 20°C) | 0.92–0.94 |
Q1: What is the primary function of SETALUX 1760 VB-64 in coating formulations?
A: SETALUX 1760 VB-64 is a hydroxyl-functional acrylic resin designed to serve as a reactive binder in two-component polyurethane (2K PU) and other crosslinking systems. It contributes to film formation, enhances hardness and chemical resistance, and supports excellent gloss and clarity in high-performance topcoats.
Q2: Is SETALUX 1760 VB-64 compatible with common polyisocyanate crosslinkers?
A: Yes — it is specifically formulated for compatibility with aliphatic polyisocyanates, including HDI-based trimers and biuretes, enabling robust curing at ambient or elevated temperatures. Compatibility and pot life should be verified experimentally within the final formulation due to sensitivity to catalysts, solvents, and moisture.
Q3: How does SETALUX 1760 VB-64 perform in terms of weathering and UV stability?
A: As an aliphatic acrylic resin with low aromatic content, it delivers strong inherent UV resistance and long-term gloss retention, making it suitable for exterior architectural and automotive refinish applications where color stability and chalking resistance are critical.
Q4: Can this resin be used in low-VOC or solvent-reduced systems?
A: Yes — it is supplied in aromatic-free or low-aromatic solvent blends and is well-suited for formulating coatings meeting regional VOC regulations. Its low viscosity and good solubility support efficient solvent reduction without compromising flow or leveling.
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