Sanfame CZ-318 PET

Product Overview

Manufacturer: Sanfame

Category: Bottle-grade Polyethylene Terephthalate (PET)

Physical Appearance: Natural, transparent cylindrical pellets; uniform and clean particles free from black specks and impurities, with excellent light transmission.

Sanfame CZ-318 is a general-purpose bottle-grade PET resin introduced by Sanfame, enjoying stable market recognition in the packaging sector. Featuring a moderate intrinsic viscosity, low acetaldehyde content, and favorable processing stability, this grade is primarily applied in food and beverage packaging containers, adapts to mainstream blow molding processing technologies, and targets B2B procurement clients such as packaging plants and beverage manufacturers.

Technical Data Sheet (TDS)

Physical Properties

The technical data sheet (TDS) of Sanfame CZ-318 PET material from Sanfame corporation, if there are differences, please refer to the official website of Sanfame.

Features & Benefits

• Low acetaldehyde residual with an acetaldehyde content of <= 1.0 ppm, meeting the usage requirements for food-contact packaging.

• Stable and controllable intrinsic viscosity range, ensuring balanced fluidity during blow molding and a wide processing window.

• Favorable chromaticity performance with high L value and low b value, delivering crystal-clear finished bottles with a low yellowing tendency.

• Low dust content and impurity level, reducing black specks and flaws in finished products while enhancing product yield rates.

• Suitable melting point and crystallinity performance, endowing bottles with sound mechanical strength and dimensional stability.

• Controllable carboxyl end group index, offering superior resin thermal stability and minimizing degradation during processing.

Applications

• Beverage Packaging: Blow-molded containers for mineral water, purified water, and regular carbonated beverages, serving as the core application scenario for this grade.

• Food Packaging: Cooking oil bottles and condiment packaging containers, fulfilling basic requirements for food-contact packaging.

• Daily Chemical Packaging: Transparent packaging bottles for non-food personal care products and detergents.

• General Packaging Containers: Various transparent hollow packaging items, ideal for large-scale industrial blow molding production.

FAQs

Q1: What are the recommended drying conditions for Sanfame CZ-318 PET prior to processing?

A: PET materials readily absorb moisture; therefore, drying treatment is recommended before processing. General recommendations include a drying temperature of 160-170 ℃ and a drying time of 4-6 hours to control moisture content within target limits, preventing hydrolysis during processing that leads to a decline in product performance.

Q2: What are the primary differences between CZ-318 PET and high-viscosity PET grades?

A: CZ-318 belongs to medium-viscosity bottle-grade PET with an intrinsic viscosity of 0.815-0.855 dL/g, rendering it suitable for standard beverage and cooking oil blow molding. High-viscosity PET grades possess higher viscosity and are primarily utilized for large-capacity containers and thick-walled articles; this grade is not suited for heavy-duty, thick-walled products requiring higher viscosity.

Q3: Does Sanfame CZ-318 support food-contact compliance?

A: This grade is positioned as food-grade bottle PET and can be utilized in food packaging scenarios. For actual export operations, the purchasing party should review the corresponding food-contact regulatory reports against target markets to complete product compliance validation.