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High hydroxyl functionality for excellent crosslink density with melamine and polyisocyanate curing agents.
Low VOC formulation compliant with stringent environmental regulations including EU Directive 2004/42/EC.
Outstanding gloss retention and color stability upon UV exposure and weathering.
Excellent compatibility with common acrylic, polyester, and cellulose ester resins in multi-resin systems.
Optimized molecular weight distribution for balanced flow, leveling, and film hardness development.
Automotive OEM clearcoats and basecoats requiring high durability and aesthetic performance.
Industrial maintenance coatings for metal substrates exposed to harsh outdoor environments.
High-end architectural coil coatings demanding long-term gloss and corrosion resistance.
Powder coating hybrid systems where liquid acrylics enhance flow and surface appearance.
Refinish coatings for premium automotive and heavy-duty equipment applications.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear, pale yellow liquid |
| Solvent System | Xylene / butyl acetate blend |
| Hydroxyl Value (mg KOH/g) | 60–68 |
| Acid Value (mg KOH/g) | < 5 |
| Non-Volatile Content (% w/w) | 60 ± 2 |
| Viscosity (DIN 4, 23°C, mPa·s) | 4,500–6,500 |
Q1: What is the primary function of SETALUX 91795 VX-60 YB in coating formulations?
A: SETALUX 91795 VX-60 YB serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component polyurethane and polyester-based crosslinking systems. It contributes to film formation, enhances hardness and chemical resistance, and supports excellent gloss retention and weatherability in high-performance industrial and automotive topcoats.
Q2: Is this resin compatible with common isocyanate crosslinkers?
A: Yes, SETALUX 91795 VX-60 YB is formulated for compatibility with standard aliphatic and aromatic polyisocyanate crosslinkers, including HDI trimer and IPDI-based curing agents. Optimal performance is achieved when matched with low-viscosity, sterically hindered isocyanates to support good pot life and cure response at ambient or elevated temperatures.
Q3: How does SETALUX 91795 VX-60 YB support UV stability in outdoor applications?
A: As a fully acrylic hydroxyl resin with no aromatic backbone, it provides inherent resistance to UV-induced yellowing and chalking. When formulated with appropriate UV absorbers and HALS stabilizers, it enables durable, high-gloss finishes suitable for exterior architectural and transportation coatings exposed to prolonged sunlight and environmental stress.
Q4: Can this resin be used in low-VOC or water-reducible systems?
A: SETALUX 91795 VX-60 YB is supplied as a solvent-borne resin and is not inherently water-reducible. However, it can be incorporated into low-VOC solvent-based formulations using high-boiling, exempt or low-impact solvents. For aqueous systems, Allnex offers alternative hydroxyl-acrylic dispersions — consult technical service for formulation guidance aligned with regulatory and sustainability targets.
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