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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 for industrial coatings.
Superior gloss retention and long-term weatherability in exterior applications.
Excellent compatibility with common solvent-based and high-solids acrylic/melamine systems.
Consistent batch-to-batch performance ensured by Allnex’s controlled polymerization process.
Automotive OEM clearcoats and basecoat/clearcoat systems.
Industrial maintenance coatings for metal furniture and agricultural equipment.
General-purpose high-performance coil coatings.
Refinish coatings requiring fast cure, hardness, and UV resistance.
Powder coating hybrid systems where solution acrylics enhance flow and film formation.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in organic solvent blend |
| Appearance | Clear, colorless to pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 44 ± 3 |
| Acid Value (mg KOH/g) | < 5 |
| Solids Content (% w/w) | 62.0 ± 1.0 |
| Viscosity (mPa·s, 25°C, DIN ISO 2533) | 3,800–4,800 |
| Density (g/cm³, 25°C) | 0.94–0.97 |
Q1: What is the primary function of VIACRYL VSC6276w 44WA in coating formulations?
A: VIACRYL VSC6276w 44WA 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, VIACRYL VSC6276w 44WA is formulated for compatibility with standard aliphatic isocyanate crosslinkers—including HDI-based biuret and trimer types—enabling robust cure performance at ambient or elevated temperatures. Formulators should verify reactivity and pot life under specific process conditions during development.
Q3: How does the “44WA” designation relate to product handling and application?
A: The “44WA” suffix indicates that this grade is a water-reducible version with approximately 44% non-volatile content, optimized for low-VOC, aqueous-based systems. It offers good stability in mildly acidic to neutral dispersions and is typically used without organic co-solvents, though minor adjustments may be needed depending on formulation pH and ionic environment.
Q4: Can VIACRYL VSC6276w 44WA be used in direct-to-metal (DTM) applications?
A: While not inherently corrosion-inhibiting, VIACRYL VSC6276w 44WA can be incorporated into DTM coatings when combined with appropriate anti-corrosive pigments, adhesion promoters, and rheology modifiers. Its hydroxyl functionality and film integrity support durable, flexible films suitable for light- to medium-duty metal protection, particularly where UV stability and gloss retention are critical.
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