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Excellent clarity and gloss for premium aesthetic performance.
Good chemical resistance to alcohols, oils, and mild acids.
Low moisture absorption for dimensional stability in humid environments.
Easy processability via injection molding and extrusion without drying.
Compliant with FDA 21 CFR §177.1810 for indirect food contact applications.
Medical device housings and diagnostic components.
Consumer electronics enclosures requiring transparency and toughness.
Food packaging trays and clamshells for refrigerated and frozen products.
Point-of-purchase displays and retail signage.
Personal care product containers (e.g., shampoo bottles, cosmetic jars).
| Chemical Type | Copolyester (PET-based, cyclohexanedimethanol-modified) |
| Product Form | Pellets |
| Appearance | Transparent, colorless pellets |
| Melt Flow Rate (250 °C / 2.16 kg) | 15–19 g/10 min |
| Glass Transition Temperature (Tg) | 80–84 °C |
| Density | 1.20–1.22 g/cm³ |
| Moisture Content (as received) | <0.15 wt% |
| Primary Applications | Medical devices, food packaging, consumer electronics, cosmetics packaging |
Q1: What are the primary performance benefits of Eastman Eastar EN058 in polyester-based formulations?
A: Eastar EN058 is a non-phthalate copolyester resin designed to enhance flexibility, clarity, and low-temperature toughness in polyester systems. It improves melt processability and contributes to improved impact resistance without compromising optical clarity or thermal stability.
Q2: Is Eastar EN058 suitable for use in food-contact applications?
A: Eastar EN058 is formulated to support compliance with major global food-contact regulations when used within recommended conditions and formulation guidelines. End-use compliance requires full evaluation of the final article, including processing conditions, intended contact type, and duration.
Q3: How is Eastar EN058 typically incorporated into polyester resin systems?
A: Eastar EN058 is generally blended into polyester resins via melt compounding or dry blending prior to extrusion or injection molding. It is compatible with a broad range of polyesters and can be processed using standard thermoplastic equipment without requiring major modifications.
Q4: Does Eastar EN058 require special handling or drying before processing?
A: Yes — like many hygroscopic polymeric resins, Eastar EN058 should be dried prior to processing to minimize hydrolytic degradation. Recommended drying conditions are consistent with standard polyester handling practices: typically 4–6 hours at 60–70 °C under dehumidified air.
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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
