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High reactivity with amine and anhydride curing agents for rapid gelation and short cycle times.
Excellent adhesion to metals, composites, and cured polymer substrates without surface priming.
Low viscosity (12,000–14,000 cP at 25°C) enabling easy processing via casting, impregnation, and filament winding.
Superior electrical insulation properties with high volume resistivity (>1 × 10¹³ Ω·cm) and low dielectric loss.
Good thermal stability with glass transition temperature (Tg) of 125–135°C after post-cure.
Electrical encapsulation and potting of transformers, reactors, and high-voltage insulators.
Matrix resin for fiber-reinforced composites in wind turbine blades and aerospace secondary structures.
Structural adhesive formulation for automotive bonding and metal-to-metal assembly.
Coating and lining systems for corrosion-resistant tanks and chemical process equipment.
Prepreg production for printed circuit board (PCB) laminates and high-frequency substrate materials.
| Chemical Type | Bisphenol-A based liquid epoxy resin |
| Product Form | Clear, pale yellow viscous liquid |
| Appearance | Transparent, slightly yellow, homogeneous |
| Epoxy Equivalent Weight (EEW) | 185–195 g/eq |
| Viscosity (25°C) | 12,000–14,000 cP |
| Chloride Content | ≤ 700 ppm |
| Volatile Content | ≤ 0.3 wt% |
| Primary Applications | Encapsulation, composites, adhesives, coatings |
Q1: What is the primary functional role of KUKDO SM602R in epoxy formulations?
A: KUKDO SM602R is a reactive diluent designed to reduce viscosity and improve processability of standard bisphenol-A or bisphenol-F based epoxy resins without significantly compromising crosslink density or thermal performance.
Q2: Is SM602R compatible with common amine-based hardeners?
A: Yes, SM602R demonstrates good compatibility with aliphatic, cycloaliphatic, and aromatic amine hardeners, supporting homogeneous mixing and consistent cure behavior across typical formulation ranges.
Q3: How does SM602R affect the final cured film properties compared to non-diluted systems?
A: When used at recommended levels, SM602R helps maintain mechanical strength and chemical resistance while enabling improved wetting of fillers and substrates—particularly beneficial in coatings, adhesives, and casting applications requiring lower processing viscosity.
Q4: What storage conditions are recommended for optimal shelf life?
A: Store in tightly sealed original containers at temperatures between 10°C and 30°C, away from moisture, direct sunlight, and strong oxidizing agents. Prolonged exposure to elevated temperatures or humidity may affect reactivity and viscosity stability.
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