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High-purity, low-chloride bisphenol A-type epoxy resin with excellent electrical insulation properties.
Optimized molecular weight distribution for superior processability in solvent-based and high-solids coating systems.
Low viscosity at elevated temperatures, enabling efficient impregnation of glass and carbon fiber reinforcements.
Excellent thermal stability and hydrolytic resistance, supporting long-term performance in demanding environments.
Consistent batch-to-batch quality certified to ISO 9001 manufacturing standards.
Electrical laminates for printed circuit boards (PCBs) requiring high Tg and dimensional stability.
Insulating varnishes and impregnating resins for motors, transformers, and generators.
High-performance composite matrices in aerospace and wind turbine blade manufacturing.
Structural adhesives for automotive and rail transportation components.
Encapsulants and potting compounds for power electronics and LED modules.
| Chemical Type | Bisphenol A diglycidyl ether (DGEBA) epoxy resin |
| Product Form | Pale yellow to amber viscous liquid |
| Appearance | Clear, transparent, free from gels or suspended matter |
| Epoxy Equivalent Weight (EEW) | 185–195 g/eq |
| Viscosity (25°C) | 12,000–16,000 mPa·s |
| Chlorine Content | ≤ 700 ppm |
| Gardner Color | ≤ 4 |
| Softening Point | Not applicable (liquid at room temperature) |
Q1: What is the primary function of DAICEL EHPE3150 in epoxy formulations?
A: DAICEL EHPE3150 is a cycloaliphatic epoxy resin designed to serve as a reactive diluent and viscosity modifier. It helps reduce formulation viscosity without sacrificing epoxy functionality or thermal stability, enabling improved processability in coating, adhesive, and encapsulation systems.
Q2: Is EHPE3150 compatible with standard amine and anhydride curing agents?
A: Yes, EHPE3150 exhibits good reactivity with common aliphatic and aromatic amines, as well as cyclic anhydrides. Its cycloaliphatic structure supports efficient crosslinking, though optimal cure schedules may require slight adjustment depending on the specific hardener and application requirements.
Q3: How does EHPE3150 compare to conventional bisphenol-A epoxy resins in terms of UV and weather resistance?
A: Due to its saturated cycloaliphatic backbone and absence of aromatic rings, EHPE3150 offers significantly enhanced resistance to UV degradation and yellowing compared to standard bisphenol-A-based epoxies—making it particularly suitable for outdoor and high-clarity applications where long-term gloss retention and color stability are critical.
Q4: Can EHPE3150 be used in food-contact or pharmaceutical-grade epoxy systems?
A: EHPE3150 is not pre-qualified for direct food-contact use under major global regulatory frameworks. Its suitability for such applications depends on full formulation evaluation—including final cured extractables, intended exposure conditions, and compliance verification by the end-user’s regulatory team.
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