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High solids content for reduced VOC emissions and improved coating efficiency.
Excellent weather resistance and UV stability for long-term outdoor performance.
Superior gloss retention and color clarity in clear and pigmented coatings.
Good compatibility with common crosslinkers including melamine and polyisocyanates.
Consistent batch-to-batch reproducibility supported by stringent quality control.
Automotive OEM and refinish topcoats.
Industrial maintenance coatings for metal and plastic substrates.
Architectural high-performance exterior wall coatings.
Can and coil coatings requiring durability and aesthetic consistency.
General-purpose protective and decorative solventborne coatings.
| Chemical Type | Solventborne acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear to slightly hazy, pale yellow liquid |
| Solvent System | Xylene / butyl acetate blend |
| Solids Content (wt%) | 55–60% |
| Acid Value (mg KOH/g) | 3–8 |
| Viscosity (mPa·s, 25°C, Brookfield LVT) | 1,200–2,500 |
| Primary Applications | High-gloss automotive and industrial topcoats |
Q1: What is the primary function of Hanwha S-90 in coating and ink formulations?
A: Hanwha S-90 is a solution-grade acrylic resin designed primarily as a film-forming binder and rheology modifier. It enhances gloss, hardness, and substrate adhesion while supporting good flow and leveling in solvent-based and high-solids systems.
Q2: Is Hanwha S-90 suitable for use in food-contact coatings?
A: Hanwha S-90 is not pre-certified for direct food-contact applications. Formulators intending to use it in such systems must conduct full regulatory evaluation—including migration testing and compliance verification—based on the final cured film composition and intended use conditions.
Q3: How does Hanwha S-90 compare to conventional acrylic resins in terms of solubility and compatibility?
A: S-90 exhibits broad solubility in common organic solvents—including aromatic hydrocarbons, ketones, and esters—and demonstrates good compatibility with many alkyds, melamines, and other acrylic resins. Its molecular design supports stable blending without haze or phase separation in typical industrial formulations.
Q4: What are the recommended storage conditions for Hanwha S-90?
A: Store in tightly sealed original containers in a cool, dry, well-ventilated area away from direct sunlight and ignition sources. Avoid prolonged exposure to temperatures above 40 °C, and prevent freezing, as low-temperature crystallization may affect handling properties.
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E-mail: wangxingqiang@ericwchem.com
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