Description

Tripropylene Glycol Dimethacrylate is a difunctional methacrylate monomer characterized by its two reactive double bonds. This chemical structure is critical for creating highly cross-linked polymer networks, offering superior hardness, chemical resistance, and durability in the final cured material. It is an essential raw material for formulators and manufacturers in the coatings, adhesives, and advanced composites industries seeking to enhance the performance properties of their products.

Application

• UV-Curable Coatings & Inks: A key cross-linking agent in formulations for wood, plastic, and metal coatings, as well as printing inks, providing fast cure speeds and excellent surface hardness.
• Dental & Medical Composites: Used in restorative materials and bone cements to improve mechanical strength, wear resistance, and biocompatibility.
• Adhesives & Sealants: Imparts strong adhesion and thermal stability to anaerobic, acrylic, and structural adhesives.
• Fiber Optic Coatings: Contributes to the protective primary and secondary coatings on optical fibers, ensuring signal integrity and environmental protection.
• Nail Enhancements & Cosmetics: A component in gel polishes and artificial nail systems, offering a glossy, durable finish.
• 3D Printing Resins (SLA/DLP): Serves as a reactive diluent and cross-linker in photopolymer resins, enhancing resolution and part toughness.
• Industrial Laminates & Composites: Used in gel coats and resin matrices for reinforced plastics, improving chemical and water resistance.

Basic Information

Product Name	Tripropylene Glycol Dimethacrylate
CAS No.	51247-87-1
Molecular Formula	C20H34O6
Molecular Weight	370.48 g/mol
Synonyms	TPGDMA; TPGDA (Note: often confused with the diacrylate, but dimethacrylate is distinct); 2-Methyl-2-propenoic acid oxybis(2,1-ethanediyloxy-2,1-ethanediyl) ester; Tripropylene Glycol Dimethacrylate; PPG-3 Dimethacrylate; Bis(2-((2-(methacryloyloxy)propoxy)propyl) ether; Methacrylic acid, diester with tripropylene glycol
EINECS	257-104-4

Quality Control

Our Tripropylene Glycol Dimethacrylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including assay, purity, and inhibitor content analysis, to ensure consistency and performance. A Certificate of Analysis (COA) detailing specific results is provided with each shipment. We support compliance with relevant global regulatory frameworks, including REACH.

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/59-77°F). Keep away from heat, sparks, and open flame. To prevent premature polymerization, ensure the inhibitor (typically MEHQ) remains effective by avoiding contamination and prolonged exposure to elevated temperatures.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Color (APHA)	≤ 50
Acid Value	≤ 0.5 mg KOH/g
Water Content	≤ 0.1%
Inhibitor (MEHQ)	100 - 200 ppm
Refractive Index (20°C)	1.450 - 1.455
Density (20°C)	1.02 - 1.05 g/cm³

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