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High hydroxyl functionality for excellent crosslinking density with melamine and polyisocyanate curing agents.
Low viscosity enables high-solids formulation without sacrificing flow or leveling performance.
Outstanding UV resistance and gloss retention in outdoor applications.
Good compatibility with common solventborne acrylics, alkyds, and polyester resins.
Designed for low-VOC, high-performance industrial coatings systems.
Automotive OEM and refinish topcoats.
Industrial maintenance coatings for metal substrates.
General-purpose coil coatings requiring durability and weatherability.
High-gloss appliance finishes.
Plastic coatings for automotive interior and exterior trim.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear to slightly yellow, homogeneous liquid |
| Solvent System | Aromatic hydrocarbons (e.g., xylene, Solvesso™) |
| Non-Volatile Content (wt%) | 65 ± 1% |
| Hydroxyl Value (mg KOH/g) | 135 – 145 |
| Acid Value (mg KOH/g) | < 5 |
| Viscosity (25°C, mPa·s) | 800 – 1200 (Brookfield RVT, spindle #3, 20 rpm) |
Q1: What is the primary function of MACRYNAL VSM 2701 65SNA in coating formulations?
A: MACRYNAL VSM 2701 65SNA 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 suitable for waterborne or solventborne systems?
A: MACRYNAL VSM 2701 65SNA is formulated for use in solventborne systems and is not inherently compatible with waterborne dispersions without modification. It dissolves readily in common organic solvents such as esters, ketones, and aromatic hydrocarbons, making it well-suited for conventional solvent-based industrial coatings.
Q3: How does this resin perform in terms of UV stability and outdoor durability?
A: As a purely acrylic hydroxyl resin—free from aromatic monomers—the polymer backbone provides inherently good UV resistance and reduced yellowing tendency. When properly formulated and cured, coatings containing MACRYNAL VSM 2701 65SNA demonstrate strong long-term gloss retention and color stability under accelerated and natural weathering conditions.
Q4: Which crosslinkers are commonly used with this resin?
A: MACRYNAL VSM 2701 65SNA is typically paired with aliphatic isocyanate crosslinkers—such as HDI-based biuret or trimer types—for high-performance 2K PU systems. It may also be used with melamine-formaldehyde resins in thermosetting baking applications, though compatibility and cure profile must be verified case by case.
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