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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 without requiring surface priming.
Low viscosity (12,000–14,000 cP at 25°C) enabling easy processing via casting, impregnation, and filament winding.
Superior thermal stability with glass transition temperature (Tg) exceeding 125°C after full cure.
Low volatile organic compound (VOC) content, compliant with REACH and RoHS directives.
Electrical insulation systems for medium-voltage transformers and busbar encapsulation.
Structural adhesive formulations for automotive lightweight composite bonding.
Matrix resin in fiber-reinforced polymer (FRP) pultrusion profiles for corrosion-resistant infrastructure.
Encapsulants for power electronics modules requiring high thermal conductivity and dielectric integrity.
Wind turbine blade root joints and spar cap infusion resins.
| Chemical Type | Bisphenol-F based liquid epoxy resin |
| Product Form | Clear to pale amber viscous liquid |
| Appearance | Homogeneous, free of gels or sediment |
| Epoxy Equivalent Weight (EEW) | 185–195 g/eq |
| Viscosity (25°C) | 12,000–14,000 cP |
| Chlorine Content | < 800 ppm (total chlorine) |
| Softening Point | Not applicable (liquid at room temperature) |
| Storage Stability | 12 months at < 30°C in sealed containers |
Q1: What is the primary functional role of KUKDO SM-019 in epoxy formulations?
A: KUKDO SM-019 is a reactive liquid epoxy resin modifier designed to reduce system viscosity, improve processability, and enhance flexibility without significantly compromising thermal stability or chemical resistance.
Q2: Is KUKDO SM-019 suitable for high-gloss, UV-stable coatings?
A: Yes — its low volatility and compatibility with common amine and anhydride hardeners support high-clarity, low-haze film formation. For optimal UV performance, it should be formulated with appropriate stabilizers and pigments, as SM-019 itself is not inherently UV-resistant.
Q3: How does KUKDO SM-019 compare to conventional bisphenol-A epoxy resins in terms of reactivity?
A: SM-019 exhibits moderate reactivity — generally lower than standard DGEBA resins but higher than many solid epoxy diluents. Its reactivity profile allows for extended pot life while maintaining acceptable cure speed under typical thermal curing conditions.
Q4: Can KUKDO SM-019 be used in food-contact compliant epoxy systems?
A: SM-019 may be incorporated into food-contact epoxy formulations where regulatory compliance is achieved through full system evaluation. It is not pre-approved on its own; final compliance depends on the complete cured matrix, intended use conditions, and applicable regional regulations.
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