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High hydroxyl functionality for excellent crosslink density with melamine and polyisocyanate curing agents.
Optimized molecular weight distribution for balanced flow, leveling, and film hardness development.
Low viscosity in solvent-borne systems, enabling high-solids formulations without sacrificing application performance.
Superior UV resistance and gloss retention in outdoor durable coatings.
Consistent batch-to-batch reproducibility meeting stringent automotive OEM and industrial coating requirements.
Automotive OEM topcoats and clearcoats.
Industrial maintenance coatings for metal substrates.
General-purpose coil coatings requiring excellent formability and weathering resistance.
Refinish clearcoats for automotive and motorcycle applications.
High-performance plastic coatings requiring adhesion and flexibility.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in aromatic hydrocarbon solvent |
| Appearance | Clear, colorless to pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 75–85 |
| Acid Value (mg KOH/g) | < 5 |
| Non-Volatile Content (% w/w) | 50.0 ± 1.0 |
| Viscosity (mPa·s, 25°C, Brookfield RVT, #3 spindle, 20 rpm) | 4,000–6,000 |
| Density (g/cm³, 25°C) | 0.92–0.95 |
Q1: What is the primary function of SETALUX 1152 SS-51 in coating formulations?
A: SETALUX 1152 SS-51 serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component polyurethane and polyester-based systems. It contributes to film formation, crosslink density, and enhances hardness, chemical resistance, and gloss retention.
Q2: Is SETALUX 1152 SS-51 compatible with common isocyanate crosslinkers?
A: Yes, it is formulated for compatibility with standard aliphatic and aromatic polyisocyanates, including HDI trimer and IPDI-based crosslinkers. Optimal performance is achieved when matched with low-viscosity, high-functionality isocyanates suitable for ambient or forced-dry curing conditions.
Q3: How does SETALUX 1152 SS-51 perform in terms of weathering and UV stability?
A: As an acrylic-based hydroxyl resin with inherent backbone stability, it delivers excellent long-term UV resistance and minimal yellowing—making it well-suited for exterior architectural and industrial maintenance coatings where durability under sunlight exposure is critical.
Q4: Can this resin be used in low-VOC or high-solids coating systems?
A: Yes, SETALUX 1152 SS-51 is designed for use in medium-to-high solids solventborne systems and can be integrated into low-VOC formulations when paired with appropriate solvents and crosslinkers. Its viscosity and reactivity profile support efficient formulation without excessive solvent demand.
Q5: What are typical handling and storage recommendations?
A: Store in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and ignition sources. Avoid prolonged exposure to moisture and extreme temperatures. Shelf life is typically 12 months under recommended storage conditions; always inspect for clarity and viscosity consistency before use.
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