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High hydroxyl functionality for excellent crosslinking efficiency with melamine and polyisocyanate curing agents.
Optimized molecular weight distribution for superior flow, leveling, and film formation in high-solids coatings.
Low viscosity at high solids content (60% ±2% in xylene/butyl acetate), enabling reduced VOC formulations.
Excellent compatibility with common acrylic, polyester, and cellulose ester resins used in industrial coatings.
Good UV stability and weather resistance, supporting durable performance in exterior applications.
Automotive OEM and refinish topcoats requiring high gloss and chip resistance.
Industrial maintenance coatings for metal substrates, including agricultural and construction equipment.
General-purpose coil coatings for pre-painted steel and aluminum sheets.
High-performance plastic coatings for automotive interior and exterior trim components.
Wood finishing systems demanding clarity, hardness, and chemical resistance.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear, pale yellow liquid |
| Solids Content (wt%) | 60 ± 2 % (in xylene/butyl acetate) |
| Hydroxyl Value (mg KOH/g) | 85 – 95 |
| Acid Value (mg KOH/g) | < 5 |
| Viscosity (mPa·s, 25°C) | 300 – 600 (Brookfield RVT, spindle #3, 20 rpm) |
| Density (g/cm³, 25°C) | 0.96 – 0.99 |
Q1: What is the primary function of MACRYNAL VSM 1509 60LG in coating formulations?
A: MACRYNAL VSM 1509 60LG serves as a hydroxyl-functional acrylic resin that acts as a reactive binder in two-component polyurethane and polyester systems. It contributes to film formation, hardness development, chemical resistance, and gloss retention, particularly in high-performance industrial and automotive topcoats.
Q2: Is this resin compatible with common isocyanate crosslinkers?
A: Yes, MACRYNAL VSM 1509 60LG is specifically designed for compatibility with aliphatic and aromatic isocyanate crosslinkers, including HDI-based trimer and biuret types. Its hydroxyl functionality enables efficient curing under ambient or forced-dry conditions, delivering balanced pot life and through-cure performance.
Q3: How does VSM 1509 60LG compare to other hydroxyl acrylic resins in terms of viscosity and solids content?
A: This grade is formulated as a medium-viscosity, high-solids solution (~60% non-volatile content), offering improved handling and reduced solvent demand compared to lower-solids alternatives. Its rheology supports good flow and leveling while maintaining sufficient sag resistance in vertical applications.
Q4: Can it be used in low-VOC or high-solids coating systems?
A: Yes — its high solids content and optimized solvent blend support formulation strategies targeting reduced VOC emissions. It is widely applied in high-solids industrial maintenance and OEM coatings where regulatory compliance and environmental performance are key considerations.
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