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High purity bisphenol A-based epoxy resin with consistent molecular weight distribution.
Excellent thermal stability and chemical resistance, particularly to alkalis and solvents.
Low viscosity at processing temperatures, enabling easy handling and improved wetting of fillers/fibers.
Superior adhesion to metals, glass, and composite substrates without primer requirement.
Optimized reactivity profile for balanced gel time and extended pot life in casting and laminating applications.
Electrical insulation systems for transformers, bushings, and high-voltage encapsulation.
Structural composites in wind turbine blades and aerospace interior components.
High-performance coatings for marine and offshore steel structures.
Adhesives for automotive bonding and electronics assembly.
Prepregs and filament-wound pipes for oil & gas infrastructure.
| Chemical Type | Bisphenol A diglycidyl ether (DGEBA) |
| Product Form | Clear to pale yellow viscous liquid |
| Appearance | Homogeneous, transparent, free from gels or sediment |
| Epoxy Equivalent Weight (EEW) | 185–192 g/eq |
| Viscosity (25°C) | 12,000–15,000 mPa·s |
| Chloride Content | ≤ 800 ppm |
| Softening Point | 10–14°C |
| Volatiles Content | ≤ 0.3 wt% |
Q1: What are the primary application areas for Sanmu SM602R?
A: Sanmu SM602R is widely used in high-performance protective coatings, electrical encapsulation compounds, and structural adhesives where excellent chemical resistance, thermal stability, and mechanical strength are required. It is also commonly selected for composite matrix resins in industrial and aerospace-related applications.
Q2: How does SM602R compare to standard liquid DGEBA epoxy resins in terms of reactivity and handling?
A: SM602R exhibits moderate reactivity—slightly lower than low-molecular-weight DGEBA grades but higher than highly branched or solid epoxies. This balance supports good pot life during processing while enabling efficient cure with common amine or anhydride hardeners under standard thermal conditions.
Q3: Is SM602R suitable for food-contact or potable water applications?
A: Sanmu SM602R is not pre-certified for direct food contact or potable water systems. Its suitability for such applications depends on full formulation compliance—including hardener selection, cure conditions, and final system testing—against relevant regional regulatory frameworks.
Q4: What viscosity range can be expected for SM602R at 25°C?
A: SM602R is supplied as a low-to-medium viscosity liquid resin, typically ranging between 10,000–18,000 cP at 25°C, facilitating ease of mixing, degassing, and processing in both batch and continuous systems.
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E-mail: wangxingqiang@ericwchem.com
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