Description

Tri(Propylene Glycol) Glycerolate Diacrylate is a specialized multifunctional acrylate monomer, CAS NO 156884-88-7, valued for its unique combination of flexibility and reactivity. This compound is engineered to enhance the performance of polymer networks, offering improved crosslink density and durability in the final cured material. It is an essential raw material for formulators and manufacturers in the UV/EB-curable coatings, inks, adhesives, and advanced resin systems seeking to balance processing characteristics with end-product toughness.

Application

• UV-Curable Coatings & Inks: A key reactive diluent and crosslinker for wood, plastic, and metal coatings, providing excellent surface hardness and chemical resistance.
• Photopolymer Resins: Used in 3D printing (SLA/DLP) and photopolymer plates to modify viscosity, cure speed, and mechanical properties of the printed parts.
• Adhesives & Sealants: Imparts enhanced adhesion and flexibility in radiation-curable adhesive formulations for electronics and industrial assembly.
• Fiber Optic Coatings: Contributes to the protective secondary coating matrix, offering low shrinkage and good environmental stability.
• Dental Composites: Serves as a monomer component to improve the workability and final strength of light-cured dental restorative materials.
• Overprint Varnishes: Enhances the gloss, scratch resistance, and drying speed of protective varnishes for packaging and printed materials.

Basic Information

Product Name	Tri(Propylene Glycol) Glycerolate Diacrylate
CAS No.	156884-88-7
Molecular Formula	C21H34O9
Molecular Weight	430.49 g/mol
Synonyms	TPG Glycerolate Diacrylate; PPG-3 Glyceryl Diacrylate; Tripropylene Glycol Glycerolate Diacrylate; Glycerin Propoxylate Triacrylate (approx.); 2-Propenoic acid, oxybis(2,1-ethanediyloxy-2,1-ethanediyl) 3-(2-hydroxy-1-oxopropoxy)-2-(hydroxymethyl)-2-methylpropyl ester; SR 9021 (Sartomer trade name); NK Ester A-GLY-3E (Shin-Nakamura trade name); Light Acrylate TPGDA-G (Kyoeisha trade name)
EINECS	Contact for details

Quality Control

Our Tri(Propylene Glycol) Glycerolate Diacrylate is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing, including assay, purity, and inhibitor content analysis, to ensure consistent performance and reliability for your formulations. Certificates of Analysis (COA) detailing specific batch results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 15-25°C (59-77°F). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve monomer integrity and prevent premature polymerization. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Color (APHA)	≤ 100
Viscosity @ 25°C	Contact for details
Inhibitor (MEHQ)	100 - 300 ppm
Acid Value	≤ 1.0 mg KOH/g
Water Content	≤ 0.2%

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