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High clarity and excellent UV stability for long-term outdoor performance.
Low viscosity enables easy processing and improved flow in coating and casting applications.
Good chemical resistance to dilute acids, alkalis, and common solvents.
Excellent adhesion to various substrates including metals and plastics.
Non-yellowing formulation suitable for optical and decorative transparent applications.
UV-curable clear coatings for automotive trim and electronics enclosures.
Optically clear encapsulants for LED and sensor protection.
Transparent casting resins for signage, awards, and decorative art pieces.
High-gloss topcoats for industrial and architectural pre-finished metal panels.
Base resin for formulating low-VOC, high-performance polyester-based coatings.
| Chemical Type | Unsaturated aliphatic polyester resin |
| Product Form | Liquid, solvent-free |
| Appearance | Water-white, transparent liquid |
| Viscosity (25°C) | ~1,200–1,800 cP |
| Refractive Index (25°C) | 1.495–1.505 |
| Density (25°C) | 1.08–1.12 g/cm³ |
| Primary Applications | UV-curable coatings, optical encapsulation, decorative casting |
| Key Features | Low yellowing, high clarity, excellent UV resistance |
Q1: What is the primary function of Eastman Eastar EN052 in polymer formulations?
A: Eastar EN052 is a non-phthalate, aliphatic polyester resin designed primarily as a reactive plasticizer and viscosity modifier for PVC and other polar polymers. It enhances flexibility, processability, and low-temperature performance while supporting improved migration resistance compared to conventional plasticizers.
Q2: Is Eastar EN052 compatible with common PVC processing methods?
A: Yes, Eastar EN052 is fully compatible with standard PVC processing techniques including calendering, extrusion, and injection molding. Its thermal stability and low volatility support efficient high-shear mixing and extended processing windows without premature degradation or plate-out.
Q3: How does Eastar EN052 compare to traditional phthalate plasticizers in terms of extractability?
A: Due to its polymeric structure and higher molecular weight, Eastar EN052 exhibits significantly lower extractability in polar media such as water, soaps, and oils compared to monomeric phthalates. This makes it suitable for applications where long-term permanence and resistance to leaching are critical.
Q4: Can Eastar EN052 be used in food-contact or medical-grade formulations?
A: Eastar EN052 is manufactured under stringent quality controls and is intended for use in applications requiring regulatory compliance. While it is not inherently approved for all food-contact or medical uses, it has been successfully formulated into products meeting relevant global requirements—formulators should conduct full regulatory evaluation and testing specific to their end-use and jurisdiction.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
