Wankai PET WK-901 for Large-volume Rigid Packaging Containers

Wankai PET WK-901 is specifically designed for large-capacity PET packaging applications, offering excellent strength, clarity, low migration, and stable processing performance. It is widely used for 5-gallon water containers, large edible oil bottles, and high-clarity APET sheets.

With increasing global demand for food-safe, recyclable, and BPA-free packaging solutions, WK-901 is widely adopted as a reliable polymer for large-capacity packaging production. It aligns with sustainability trends and offers the performance advantages needed in high-strength PET applications.

Item	Value
Intrinsic Viscosity (dL/g)	0.870±0.015
Acetaldehyde Content (μg/g)	≤1.0
Color (L-value)	≥83.0
Color (b-value)	≤-0.5
Peak Temperature when Melting（DSC by Nitrogen）(°C)	240± 2
Moisture Content (%)	≤0.20

Performance Advantages

Excellent Processing Stability. WK-901 offers reliable and smooth processing behavior, making it suitable for both injection molding and two-stage stretch blow molding. Its melt flow characteristics and controlled crystallization rate allow manufacturers to maintain consistent performance during production, supporting efficient high-speed industrial operations.
High Mechanical Strength and Impact Resistance. Due to its high intrinsic viscosity and strong molecular structure, Wankai PET WK-901 delivers outstanding durability and load-bearing capability. This enables the production of reusable, long-life PET packaging, particularly for heavy-duty applications such as large bottled water containers.
Outstanding Optical Appearance. Products made from WK-901 PET chips exhibit superior transparency, gloss, and uniform coloration, resulting in packaging with a clean, premium, and high-clarity finish. The resin ensures smooth surface quality, enhancing both consumer perception and brand value.
Strong Barrier and Shelf-Life Performance. The resin provides effective resistance to moisture, oxygen, and carbon dioxide transmission. This barrier capability helps maintain product freshness, flavor, and safety, contributing to extended shelf life for beverages and food products.
Safe, Low-Migration, and BPA-Free. WK-901 features extremely low acetaldehyde content, ensuring neutral taste and preventing odor migration into packaged beverages. It is completely free of Bisphenol A (BPA), offering a safe alternative to polycarbonate (PC) in applications that require direct contact with drinking water and food.

Recommended Applications

5-gallon / 18.9 L water barrels.
3–10 L beverage containers.
Large edible oil bottles (1–10 L).
High-clarity APET sheets and thermoformed packaging.
Cold-fill beverages.
Reusable and refillable PET packaging.

Packaging & Storage & Shelf Life

The resin is supplied in packed bags or bulk packaging.
Store in a clean, dry, indoor environment away from moisture and direct sunlight.
Unopened shelf life: ~2 years.
Opened bags should be used promptly to prevent moisture absorption.