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High hydroxyl functionality for excellent crosslinking efficiency with melamine and polyisocyanate curing agents.
Low VOC formulation compatible with stringent environmental regulations and sustainable coating systems.
Superior weatherability and UV resistance, maintaining gloss and color stability in exterior applications.
Excellent compatibility with common solvent-borne acrylics, alkyds, and polyester resins.
Good flow and leveling characteristics for high-gloss, defect-free film formation.
Automotive OEM topcoats and refinish clearcoats.
Industrial maintenance coatings for metal and plastic substrates.
Architectural high-performance facade and cladding coatings.
Powder coating hybrid systems requiring enhanced flexibility and cure response.
General-purpose high-solids decorative and protective coatings.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in organic solvent |
| Appearance | Clear, pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 85–95 |
| Acid Value (mg KOH/g) | < 5 |
| Solids Content (% by weight) | 60 ± 2 |
| Viscosity (mPa·s at 25°C) | 400–700 |
| Density (g/cm³ at 25°C) | 0.92–0.96 |
Q1: What is the primary function of SETALUX 91756 VS-60 in coating formulations?
A: SETALUX 91756 VS-60 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 development, and supports good chemical and abrasion resistance in final cured coatings.
Q2: Is this resin suitable for high-solids or low-VOC coating applications?
A: Yes — SETALUX 91756 VS-60 is formulated to support medium-to-high solids content systems and is commonly used in solventborne industrial coatings where VOC reduction is a key objective. Its viscosity and reactivity profile allow formulators to balance solids loading with application performance.
Q3: Which types of crosslinkers are typically compatible with this resin?
A: SETALUX 91756 VS-60 is engineered for use with aliphatic isocyanate crosslinkers (e.g., HDI-based trimer or biuret types) and can also be paired with melamine-formaldehyde resins in certain thermoset applications. Compatibility should always be verified through small-scale formulation testing under intended cure conditions.
Q4: How does SETALUX 91756 VS-60 compare to other hydroxyl acrylic resins in terms of weatherability?
A: As an aliphatic acrylic resin, it provides excellent UV stability and gloss retention, making it well-suited for exterior applications where long-term color and clarity are critical — notably in automotive clearcoats, premium industrial finishes, and architectural coatings requiring durable aesthetics.
Q5: What are the recommended storage conditions for this resin?
A: Store in tightly sealed original containers in a cool, dry, and well-ventilated area away from direct sunlight and sources of heat or ignition. Avoid prolonged exposure to temperatures above 40 °C, and ensure containers remain moisture-free to preserve hydroxyl functionality and shelf life.
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