PET CR-8839T is a bottle-grade polyester chips developed and produced under the CR-BRIGHT® brand by China Resources Chemical Materials Technology Co., Ltd. And this grade is specially engineered for hot-fill bottle applications, offering high thermal stability, excellent clarity, and low migration substances. It meets global food packaging requirements and is designed for high-efficiency production lines.

Technical Specifications of PET CR-8839T

Item

Unit

Index

Test Method

Intrinsic Viscosity (Foreign Trade)

dL/g

0.800 ± 0.02

ASTM D4603

Content of acetaldehyde

ppm

≤1

Gas Chromatography

Color value L

–

≥80

HunterLab

Color value b

–

≤1

HunterLab

Melting point

°C

243 ± 2

DSC

Water content

wt%

≤0.2

Weight Method

Powder dust

ppm

≤100

Weight Method

Weight of 100 chips

g

1.55 ± 0.10

Weight Method

Main Product Advantages

  • Intrinsic Viscosity: 0.770 ± 0.015 dL/g, ideal for stretch blow molding processing.
  • Excellent transparency and gloss, ensuring premium product appearance.
  • Low acetaldehyde content (≤1.0 μg/g) to prevent odor or taste interference in beverages.
  • High heat resistance, supporting hot-fill temperatures from 80°C to 95°C.
  • Low heavy metal, ash, and impurity content, ensuring food-grade purity.
  • Wide processing window with stable melt flow behavior suitable for high-speed equipment.
  • Good rigidity, impact strength, and dimensional stability, maintaining container performance during storage, transport, and filling.

Primary Application Areas

  • Hot-fill beverage bottles (tea drinks, juice, isotonic beverages, herbal drinks, functional beverages).
  • Standard water bottles and soft drink containers.
  • Edible oil bottles and condiment bottles.
  • Pharmaceutical and nutraceutical packaging.
  • General blow-molded and injection-molded PET containers.

Packaging and Storage

  • Supplied in sealed 25 kg bags, bulk bags, or silo systems depending on customer requirements.
  • Store in a cool, dry environment away from moisture and sunlight.
  • Keep sealed until processing to avoid hydrolytic degradation during melting.

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