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CAS no: 2451-62-9
EC / List no: 219-514-3
Chemical formula: C12H15N3O6
Synonyms: 1,3,5-Triglycidyl isocyanurate, 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-tris(oxiranylmethyl)-, 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-tris(2-oxiranylmethyl)-, 1,3,5-Triglycidyl-s-triazinetrione, 1,3,5-Triglycidylisocyanurate, 1,3,5-Triglycidylisocyanuric acid, 1,3,5-Tris (2,3-epoxypropyl)-1,3,5-triazinane-2,4,6-trione, 1,3,5-Tris (2,3-epoxypropyl)-1,3,5-triazine-2,4,6 (1H,3H,5H)-trione, 1,3,5-Tris(2,3-epoxypropyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-Tris(2,3-epoxypropyl)-1,3,5-triazine-2,4,6-trione, 1,3,5-Tris(2,3-epoxypropyl)hexahydro-1,3,5-triazine-2,4,6-trione, 1,3,5-Tris(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione, 1,3,5-Tris(oxiranylmethyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-Tris(oxiranylmethyl)-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione, 1,3,5-Tris(oxiranylmethyl)1,3,5-triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-Tris(oxiranylmemyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione, tris[(oxiran-2-yl)methyl]-1,3,5-triazinane-2,4,6-trione, Tris(2,3-epoxypropyl) isocyanurate, Glycidyl isocyanurate, ISOCYANURATE, TRIGLYCIDYL, ISOCYANURATE, TRIS(2,3-EPOXYPROPYL), TGIC, TRIGLYCIDYL ISOCYANURATE, Triglycidyl Isocyanurate, Triglycidyl isocyanurate, Araldite PT 810, 1,7,7-trimethylbicyclo[2.2.1]heptan-2-one
Triglycidyl isocyanurate (TGIC), also known as 1,3,5-triglycidyl isocyanurate, is a tri-functional epoxy compound widely used as a crosslinking and curing agent in advanced polymer systems.
It is a white to off-white crystalline or granular solid with excellent thermal stability, chemical resistance, and mechanical performance. Due to its reactive epoxy groups, TGIC plays a key role in improving durability and structural integrity of polymer-based materials.
Key Properties of 1,3,5-TRIGLYCIDYL-S-TRIAZINETRIONE
Appearance: White to pale yellow crystalline powder or solid
Odor: Mild characteristic odor
Density: ~1.45 g/cm³
Boiling Point: Decomposes before boiling under normal atmospheric conditions
Melting Point: ~90–125 °C (depending on purity and grade)
Solubility: Slightly soluble in water; soluble in acetone, ethanol, and other organic solvents
Flash Point: >150 °C
Vapor Pressure: Very low at room temperature
Refractive Index: ~1.52
Epoxy Equivalent Weight (EEW): ~100 g/eq
Viscosity: Moderate viscosity when molten or in resin formulations
Thermal Stability: Stable under recommended storage conditions; sensitive to strong acids and bases
Reactivity: Contains three reactive epoxy groups enabling strong crosslinking performance
Chemical Structure: Triazine-based multifunctional epoxy compound
Main Function: Crosslinking agent and epoxy resin intermediate
UV Resistance: Good resistance to environmental and chemical degradation
Compatibility: Compatible with epoxy resins, powder coatings, adhesives, and composite systems
Industrial Applications of TGIC
Powder Coatings
TGIC is most widely used as a curing agent in polyester powder coatings. It enhances:
Weather resistance
Chemical resistance
Abrasion resistance
Mechanical strength
Typical applications include:
Automotive wheels
Metal furniture
Air conditioners
Household appliances
Architectural metal coatings
TGIC-based powder coatings provide a durable, smooth, and long-lasting finish, especially on sharp-edged metal surfaces.
Electrical & Electronic Applications
TGIC is extensively used in the electronics industry for high-performance insulation systems:
Printed circuit boards (PCBs)
Electrical laminates
Potting and encapsulation compounds
Electrical insulation materials
It improves dielectric strength, thermal stability, and moisture resistance.
Adhesives and Sealants
TGIC acts as a crosslinking agent in epoxy-based adhesives and sealants, providing:
Strong bonding strength
High thermal resistance
Long-term durability
It is widely used in construction, automotive, aerospace, and marine applications.
Plastic and Polymer Industry
TGIC is used as a polymer additive and stabilizer, improving:
Heat resistance
Flame retardancy
Structural stability
It is especially important in thermoset and high-performance plastic systems.
Composite Materials
TGIC-modified resins are used in advanced composites such as:
Fiberglass reinforced plastics (FRP)
Carbon fiber composites
These materials benefit from improved:
Strength-to-weight ratio
Fatigue resistance
Corrosion resistance
Industrial Coatings & Inks
TGIC is used in:
Industrial protective coatings
Solder mask inks
Printing inks
Protective surface coatings
It enhances adhesion, durability, and chemical resistance.
Electrical Encapsulation
TGIC is used in potting and encapsulation systems for electronic components such as transformers and sensors, ensuring:
Moisture protection
Electrical insulation
Thermal stability
Other Applications
Pressure-sensitive adhesives (PSAs)
Construction sealants
Textile coatings
Plastic modification systems
Nail polish and specialty formulations (as plasticizer component in limited systems)
Performance Benefits of TGIC
TGIC provides several key performance advantages:
Excellent thermal resistance
High mechanical strength
Superior weather durability
Strong chemical resistance
Improved adhesion to metal and composite surfaces
Long-lasting crosslinked polymer networks
Triglycidyl isocyanurate (TGIC) is a critical crosslinking agent in modern polymer chemistry, widely used in powder coatings, electrical insulation systems, adhesives, and advanced composites. Its superior performance characteristics make it an essential material in industries requiring durability, stability, and high chemical resistance.
