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High hydroxyl functionality for robust crosslinking with melamine and polyisocyanate curing agents.
Excellent weatherability and UV resistance, suitable for demanding exterior coatings.
Good compatibility with common solventborne acrylics, alkyds, and polyester resins.
Low viscosity profile enabling high-solids formulation without sacrificing flow or leveling.
Consistent batch-to-batch reproducibility supported by Allnex’s stringent quality control.
Automotive OEM clearcoats and basecoats requiring high gloss and durability.
Industrial maintenance coatings for metal substrates exposed to harsh environments.
Architectural metal cladding and coil coatings demanding long-term color retention.
High-performance refinish coatings for automotive and heavy-duty equipment.
Powder coating hybrid systems where solution-based acrylics enhance film formation.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in organic solvent (proprietary blend) |
| Appearance | Clear, pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 155–165 |
| Acid Value (mg KOH/g) | < 5 |
| Non-Volatile Content (% w/w) | 55–58 |
| Gardner Color | < 3 |
| Viscosity (mPa·s, 25°C) | 1,800–2,500 |
Q1: What is the primary function of SETALUX 433-160 in coating formulations?
A: SETALUX 433-160 is a hydroxyl-functional acrylic resin designed to serve as a reactive binder in two-component polyurethane and polyester-based coating systems. It contributes to film formation, crosslink density, and enhances mechanical properties such as hardness, flexibility, and chemical resistance.
Q2: Is SETALUX 433-160 compatible with common isocyanate crosslinkers?
A: Yes, it is formulated for compatibility with standard aliphatic and aromatic polyisocyanates, including HDI-based trimer and biuret types. Optimal performance is typically achieved when used with low-viscosity, blocked, or water-dispersible isocyanates in solventborne or high-solids applications.
Q3: How does SETALUX 433-160 perform in terms of weathering and UV stability?
A: As an acrylic-based hydroxyl resin, it offers inherently good UV resistance and long-term gloss retention, making it suitable for exterior architectural and industrial maintenance coatings where durability under sunlight exposure is required.
Q4: Can SETALUX 433-160 be used in low-VOC or high-solids systems?
A: Yes — its relatively low viscosity and high solids content support formulation into high-solids and reduced-solvent coating systems. It is commonly selected for applications targeting VOC compliance without compromising application properties or final film performance.
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