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Low viscosity for excellent processability and easy handling in casting, potting, and impregnation operations.
High purity with minimal volatile organic compounds (VOCs), supporting compliance with industrial safety and environmental standards.
Optimized reactivity profile enabling controlled cure kinetics with standard amine or anhydride hardeners.
Superior electrical insulation properties, including high dielectric strength and volume resistivity.
Excellent adhesion to metals, composites, and cured polymer substrates without primer requirement.
Electrical encapsulation and potting of transformers, reactors, and high-voltage insulators.
Structural adhesive formulations for aerospace and automotive composite bonding.
Matrix resin for filament-wound pressure vessels and fiber-reinforced piping systems.
Dielectric coatings and protective linings for electronic enclosures and PCB underfills.
Tooling resins for precision molds used in composite manufacturing and prototyping.
| Chemical Type | Diglycidyl ether of bisphenol-A (DGEBA) epoxy resin |
| Product Form | Clear, low-viscosity liquid |
| Appearance | Water-white to pale yellow, transparent |
| Epoxy Equivalent Weight (EEW) | 185–195 g/eq |
| Viscosity at 25°C | 12,000–16,000 mPa·s |
| 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 NPC NPSN-901X75 in epoxy formulations?
A: NPC NPSN-901X75 is a reactive liquid epoxy resin designed to serve as a viscosity modifier and reactive diluent. It reduces formulation viscosity without significantly compromising crosslink density or thermal performance, enabling improved processability in casting, potting, and coating applications.
Q2: Is NPC NPSN-901X75 compatible with standard amine and anhydride curing agents?
A: Yes, NPC NPSN-901X75 exhibits broad compatibility with common epoxy curing agents, including aliphatic and aromatic amines as well as cyclic anhydrides. Its reactivity profile allows for predictable gel times and full cure development under conventional thermal conditions.
Q3: How does NPC NPSN-901X75 compare to non-reactive diluents in terms of final cured properties?
A: Unlike non-reactive diluents, NPC NPSN-901X75 participates in the polymerization network, helping preserve mechanical strength, chemical resistance, and glass transition temperature (Tg) in the cured system—especially when used at moderate incorporation levels.
Q4: What handling precautions should be observed during storage and processing?
A: Store in tightly sealed containers under dry, cool conditions away from direct sunlight and strong oxidizers. As with all epoxy resins, appropriate personal protective equipment—including nitrile gloves and eye protection—should be worn during handling to minimize skin contact and potential sensitization risk.
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E-mail: wangxingqiang@ericwchem.com
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