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High reactivity with standard amine and anhydride curing agents for rapid gelation and short cycle times.
Excellent adhesion to metals, composites, and treated plastics under ambient and elevated temperature conditions.
Low viscosity (12,000–15,000 cP at 25°C) enabling easy processing, impregnation, and void-free casting.
Superior electrical insulation properties with high dielectric strength (>18 kV/mm) and volume resistivity (>1 × 10¹³ Ω·cm).
Good thermal stability with glass transition temperature (Tg) of 125–135°C after full cure with DDS.
Electrical encapsulation and potting of transformers, inductors, and high-voltage sensors.
Structural adhesive formulation for aerospace composite bonding and metal-to-composite joints.
Matrix resin for filament-wound pressure vessels and carbon fiber reinforced components.
Castable insulation systems for medium-voltage switchgear and busbar supports.
Underfill and glob-top materials in power electronics packaging requiring thermal and mechanical reliability.
| Chemical Type | Diglycidyl ether of bisphenol-F (DGEBF) |
| Product Form | Liquid resin |
| Appearance | Pale yellow to amber transparent liquid |
| Epoxy Equivalent Weight (EEW) | 168–174 g/eq |
| Viscosity (25°C) | 12,000–15,000 cP |
| Chloride Content | < 800 ppm |
| Softening Point | Not applicable (liquid at room temperature) |
| Storage Stability | 12 months at <25°C in sealed containers |
Q1: What is the primary function of GEKR379 Epoxy Resin in coating and adhesive formulations?
A: GEKR379 is a reactive liquid epoxy resin designed to serve as a key binder and crosslinking component, enhancing chemical resistance, adhesion strength, and thermal stability in high-performance protective coatings and structural adhesives.
Q2: Is GEKR379 compatible with common amine-based hardeners?
A: Yes, GEKR379 exhibits good reactivity with standard aliphatic and cycloaliphatic amines, enabling flexible cure profiles across ambient and elevated temperature conditions. Compatibility should be verified experimentally for specific hardener systems and application requirements.
Q3: How does GEKR379 compare to solid epoxy resins in terms of processing advantages?
A: As a low-viscosity liquid resin, GEKR379 offers improved handling, easier mixing, reduced need for solvents or heating during formulation, and enhanced filler wetting—making it particularly suitable for high-solids and solvent-free systems.
Q4: Can GEKR379 be used in applications requiring FDA-compliant coatings?
A: GEKR379 is not pre-approved for direct food-contact applications. Its suitability for regulated end uses depends on full formulation evaluation, final cured film testing, and compliance verification by the formulator against applicable regional food-contact regulations.
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