Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Eastman Eastar Copolyester EN058 Polyester Resin

Eastman Eastar Copolyester EN058 is a high-clarity, hydrolysis-resistant polyester resin from Eastman’s Eastar series—designed for medical packaging, flexible films, and sterilizable applications. It offers excellent toughness, low extractables, and compliance with USP Class VI and ISO 10993 standards. Ideal for thermoforming and injection molding, EN058 delivers superior processability and chemical resistance without plasticizers.
  • eastman eastar copolyester en058 polyester resin_9410a5f6
  • eastman eastar copolyester en058 polyester resin_9410a5f6

Features Of Eastman Eastar Copolyester EN058 Polyester Resin

  1. Excellent clarity and gloss for premium aesthetic performance.

  2. Good chemical resistance to alcohols, oils, and mild acids.

  3. Low moisture absorption for dimensional stability in humid environments.

  4. Easy processability via injection molding and extrusion without drying.

  5. Compliant with FDA 21 CFR §177.1810 for indirect food contact applications.

Typical Applications Of Eastman Eastar Copolyester EN058 Polyester Resin

  1. Medical device housings and diagnostic components.

  2. Consumer electronics enclosures requiring transparency and toughness.

  3. Food packaging trays and clamshells for refrigerated and frozen products.

  4. Point-of-purchase displays and retail signage.

  5. Personal care product containers (e.g., shampoo bottles, cosmetic jars).

Specifications Of Eastman Eastar Copolyester EN058 Polyester Resin

Chemical TypeCopolyester (PET-based, cyclohexanedimethanol-modified)
Product FormPellets
AppearanceTransparent, colorless pellets
Melt Flow Rate (250 °C / 2.16 kg)15–19 g/10 min
Glass Transition Temperature (Tg)80–84 °C
Density1.20–1.22 g/cm³
Moisture Content (as received)<0.15 wt%
Primary ApplicationsMedical devices, food packaging, consumer electronics, cosmetics packaging


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