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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 volatile organic compound (VOC) content, supporting compliance with stringent environmental regulations.
Excellent compatibility with common acrylic and polyester resins, enhancing formulation flexibility.
Good hydrolytic stability and storage life under recommended conditions.
Automotive OEM clearcoats and basecoats.
Industrial maintenance coatings for metal substrates.
High-gloss appliance finishes.
General-purpose coil coatings requiring durability and weather resistance.
Powder coating hybrid systems where solution-based hydroxyl acrylics enhance film formation.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid solution in aromatic hydrocarbon solvent |
| Appearance | Clear, colorless to pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 85–95 |
| Acid Value (mg KOH/g) | < 5 |
| Solids Content (% by weight) | 50 ± 2 |
| Viscosity (mPa·s at 25°C) | 1,200–1,800 |
| Density (g/cm³ at 25°C) | 0.92–0.96 |
Q1: What is the primary function of SETALUX 1194 SS-52 in coating formulations?
A: SETALUX 1194 SS-52 is a hydroxyl-functional acrylic resin designed to serve as a reactive binder in two-component polyurethane (2K PU) and polyester-based crosslinking systems. It contributes to film formation, enhances hardness development, improves chemical resistance, and supports good gloss retention and clarity in high-performance topcoats.
Q2: Is SETALUX 1194 SS-52 compatible with common isocyanate crosslinkers?
A: Yes — it is specifically formulated for compatibility with aliphatic isocyanate crosslinkers, including HDI-based trimer and biuret types. Its hydroxyl functionality ensures efficient reaction under standard curing conditions, supporting robust network formation without excessive gelation risk when properly formulated.
Q3: How does SETALUX 1194 SS-52 perform in terms of weatherability and UV stability?
A: As a purely acrylic, hydroxyl-functional resin with no aromatic content, it offers excellent inherent UV stability and long-term color and gloss retention. It is well-suited for exterior applications where resistance to chalking, yellowing, and gloss loss is critical, such as automotive clearcoats and premium architectural coatings.
Q4: Can SETALUX 1194 SS-52 be used in low-VOC or high-solids systems?
A: Yes — its relatively low viscosity and favorable solution behavior make it suitable for high-solids 2K PU formulations. It can also be adapted into solvent-reduced or VOC-compliant systems when paired with appropriate solvents and formulation adjustments, supporting compliance with regional emissions regulations.
Q5: What are typical handling and storage recommendations?
A: Store in tightly sealed containers in a cool, dry, and well-ventilated area away from direct sunlight and sources of heat or ignition. Avoid prolonged exposure to moisture. For optimal performance, use within 12 months of receipt and follow Allnex’s recommended handling practices for reactive resins, including proper personal protective equipment during handling.
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