Description

Polyethylene Terephthalate CAS NO 25038-59-9 is a high-performance thermoplastic polyester renowned for its exceptional clarity, strength, and barrier properties. This versatile polymer is a critical material for manufacturers requiring durability, chemical resistance, and recyclability in their end products. It is essential for industries producing packaging, textiles, and engineering plastics where material performance directly impacts product integrity and consumer safety.

Application

• Beverage & Food Packaging: Primary material for carbonated soft drink bottles, water bottles, and food containers due to its excellent gas barrier and clarity.
• Textile Fibers: Production of polyester fibers for clothing, home furnishings (carpets, curtains), and industrial fabrics.
• Thermoformed Sheets & Films: Used in blister packs, transparent food clamshells, and audio/video tapes.
• Engineering Resins: Reinforced with glass fibers for automotive parts, electrical components, and industrial gears.
• Strapping & Cordage: Manufacture of high-tenacity strapping for palletizing and synthetic cords.
• Recycled (rPET) Products: Source material for producing sustainable fibers for fleece garments, new food-contact containers, and non-food bottles.

Basic Information

Product Name	Polyethylene Terephthalate
CAS No.	25038-59-9
Molecular Formula	(C₁₀H₈O₄)ₙ
Molecular Weight	Variable (Polymer)
Synonyms	PET; Poly(oxyethyleneoxyterephthaloyl); Poly(ethylene terephthalate); Terylene; Dacron; Mylar; PETP; PETE; Polyester resin; 1,4-Benzenedicarboxylic acid, polymer with 1,2-ethanediol
EINECS	607-495-5

Quality Control

Our Polyethylene Terephthalate is manufactured under a stringent quality management system. Each batch is tested against key parameters including intrinsic viscosity (IV), color, and residual acetaldehyde content to ensure it meets the specifications required for your target application, whether for food-contact, fiber, or bottle-grade use. Certificates of Analysis (COA) detailing lot-specific results are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from open flames and high heat sources. For long-term storage, maintain low humidity to prevent moisture absorption, which can affect processing characteristics.

Specification

Item	Specification
Appearance	White pellets or clear amorphous chips
Intrinsic Viscosity (IV)	0.60 - 1.04 dl/g (Grade Dependent)
Melting Point	250 - 255 °C
Density	1.33 - 1.40 g/cm³
Color (L* / b*)	To customer requirement
Acetaldehyde Content	< 1 ppm (Bottle Grade)
Moisture Content	< 0.4 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.