Description

1,4-Benzenedicarboxylic Acid, Polymer With 1,2-Ethanediol And 1,2,3-Propanetiol is a high-performance, water-soluble polyester resin derived from terephthalic acid, ethylene glycol, and glycerol. This versatile polymer is engineered to deliver excellent film-forming properties, adhesion, and chemical resistance for demanding industrial applications. It is a critical raw material for formulators in the coatings, adhesives, and specialty chemical industries seeking to enhance product durability and performance.

Application

• Water-Based Industrial Coatings: As a primary resin binder for metal primers, can coatings, and coil coatings, providing corrosion resistance and adhesion.
• Adhesives and Sealants: Used in the formulation of high-strength, flexible adhesives for packaging, construction, and automotive assembly.
• Textile and Fiber Sizing: Acts as a key component in sizing agents to protect yarns during weaving and improve fabric quality.
• Ink Resins: Serves as a pigment dispersant and binder in specialty printing inks, offering gloss and rub resistance.
• Polymer Modification: Employed as an additive or cross-linking agent to improve the toughness and thermal properties of other polymers.
• Composite Materials: Functions as a matrix resin or compatibilizer in the production of fiber-reinforced composites.

Basic Information

Product Name	1,4-Benzenedicarboxylic Acid, Polymer With 1,2-Ethanediol And 1,2,3-Propanetiol
CAS No.	25703-18-8
Molecular Formula	(C10H8O4·C2H6O2·C3H8O3)n
Molecular Weight	Polymer - Variable
Synonyms	Poly(ethylene glycol-co-glycerol terephthalate); Poly(ethylene glycol-glycerol terephthalate); Terephthalic Acid-Ethylene Glycol-Glycerol Copolymer; Water-soluble Polyester Resin; PETG-type Copolyester (water-soluble grade); Glycol-Glycerol Terephthalate Copolymer
EINECS	Contact for details

Quality Control

Our production of 1,4-Benzenedicarboxylic Acid, Polymer With 1,2-Ethanediol And 1,2,3-Propanetiol adheres to strict quality management protocols. Every batch is characterized for critical parameters including acid value, hydroxyl value, viscosity, and solid content to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent moisture absorption, which can affect product properties.

Specification

Item	Specification
Appearance	Clear to slightly hazy viscous liquid or solid
Solid Content	≥ 98.0 %
Acid Value	≤ 5.0 mg KOH/g
Hydroxyl Value	As per grade
Viscosity (at 25°C)	As per grade
Color (Gardner)	≤ 3
Identification (IR)	Conforms

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