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High hydroxyl functionality for excellent crosslinking efficiency with melamine and isocyanate curing agents.
Superior weather resistance and UV stability, maintaining gloss and color retention in exterior coatings.
Good solubility in common organic solvents including xylene, butyl acetate, and ethyl acetate.
Low viscosity profile enabling high-solids formulation without sacrificing application performance.
Consistent batch-to-batch reproducibility and narrow molecular weight distribution (Mw/Mn ≤ 2.8).
Automotive OEM and refinish topcoats requiring high gloss and chip resistance.
Industrial maintenance coatings for metal substrates exposed to harsh environments.
General-purpose coil coatings for pre-painted steel and aluminum applications.
High-performance plastic coatings for automotive interior and exterior trim parts.
Two-component polyurethane clearcoats for premium architectural and furniture finishes.
| Chemical Type | Hydroxy-functional acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear, pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 65–75 |
| Acid Value (mg KOH/g) | < 5 |
| Solids Content (% by weight) | 50 ± 2 (in xylene/butyl acetate blend) |
| Viscosity (Brookfield RVT, #3 spindle, 25°C) | 4,000–6,000 cP |
| Specific Gravity (25°C) | 0.96–0.99 |
Q1: What is the primary function of AA-5117 in coating formulations?
A: AA-5117 serves as a hydroxyl-functional acrylic resin that provides reactive sites for crosslinking with melamine, polyisocyanate, or other curing agents—enhancing film hardness, chemical resistance, and thermal stability in thermosetting coatings.
Q2: Is AA-5117 compatible with common solvent-based and high-solids coating systems?
A: Yes, AA-5117 exhibits good solubility in typical organic solvents such as xylene, butyl acetate, and methyl amyl ketone, and is widely used in both conventional solvent-borne and high-solids industrial coating systems without significant compatibility issues.
Q3: How does AA-5117 contribute to weatherability and UV resistance in exterior coatings?
A: As a purely acrylic backbone resin with no aromatic content, AA-5117 offers inherently superior resistance to UV degradation and chalking compared to styrenic or alkyd-modified resins—making it well-suited for durable exterior architectural and automotive topcoats.
Q4: Can AA-5117 be used in low-VOC or water-reducible formulations?
A: While AA-5117 itself is solvent-soluble, it can be incorporated into water-reducible systems when blended with appropriate co-solvents and surfactants—or used as part of hybrid acrylic-polyurethane dispersions where its hydroxyl functionality supports crosslink density without compromising dispersion stability.
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