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High reactivity under UV curing conditions for rapid film formation and low-energy processing.
Excellent clarity and gloss retention, ideal for high-end decorative and optical coatings.
Superior flexibility and impact resistance without compromising hardness or chemical resistance.
Good compatibility with common UV monomers and photoinitiators for formulator flexibility.
Low yellowing tendency after UV exposure and long-term aging, ensuring color stability.
UV-curable clear coats for automotive trim and interior plastic parts.
Protective topcoats for electronic device housings and display bezels.
Glossy overprint varnishes for premium packaging and label applications.
Hard-coat layers for polycarbonate and acrylic optical components.
Functional coatings on flexible substrates including PET and PVC films.
| Chemical Type | Thermoplastic acrylic copolymer |
| Product Form | Clear, viscous liquid solution |
| Appearance | Colorless to pale yellow, transparent liquid |
| Solvent Content | ~35–40% (proprietary reactive diluent blend) |
| Viscosity (25°C, Brookfield LVT, #3 spindle, 6 rpm) | 8,000–12,000 cP |
| Acid Value (mg KOH/g) | < 5 |
| Refractive Index (25°C) | 1.47–1.49 |
| Primary Applications | UV-curable protective and decorative coatings |
Q1: What is the primary function of Nengda AC4060 in UV-curable formulations?
A: Nengda AC4060 serves as a reactive thermoplastic acrylic resin that enhances film toughness, flexibility, and adhesion in UV-curable coatings and inks—without compromising cure speed or surface hardness.
Q2: How does AC4060 differ from conventional UV monomers or oligomers?
A: Unlike low-molecular-weight monomers, AC4060 is a higher-molecular-weight thermoplastic acrylic resin with inherent melt viscosity and film-forming capability. It contributes cohesive strength and thermal reversibility while remaining fully compatible with standard acrylate-based UV systems.
Q3: Is AC4060 suitable for food-contact or medical-grade UV coatings?
A: AC4060 is designed for industrial and decorative applications. For food-contact or medical use, final formulation compliance must be validated by the formulator through full regulatory assessment—including migration testing and biocompatibility evaluation—as the resin itself is not pre-certified for such regulated end uses.
Q4: What solvents or diluents are recommended for handling AC4060 prior to UV curing?
A: AC4060 exhibits good solubility in common reactive diluents such as TMPTA, HDDA, and TPGDA, as well as select non-reactive carriers like ethyl acetate or propylene glycol methyl ether acetate—depending on the target viscosity and volatility requirements of the system.
Q5: Can AC4060 be blended with other UV resins, such as epoxy acrylates or urethane acrylates?
A: Yes, AC4060 demonstrates broad compatibility with standard UV-curable resins. Blending can help balance rigidity and elasticity—for example, combining it with rigid epoxy acrylates improves impact resistance without significant loss in crosslink density.
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