Brief Introduction:
NPEL-128(E-51) is a high-purity BPA-type liquid epoxy resin, which is manufactured from bisphenol-A and epichlorohydrin. It is recognized as a standard form in which variations have been developed. Cured NPEL-128 always offers quality and high-purity properties in applications, such as maximum mechanical strength, good chemical resistance and excellent heat resistance, etc.
Chemical Composition:
| Item | Quality | Unit | Range |
|---|---|---|---|
| 1 | Physical State | — | Liquid |
| 2 | Epoxy Equivalent Weight | g/eq | 184~190 |
| 3 | Hydrolyzable chlorine | ppm | 1000↓ |
| 4 | Color | Gardner | 0.0~1.0 |
| 5 | Viscosity | cps/25°C | 12000 ~ 15000 |
Application:
1. Laminates
2. Filament winding
3. Encapsulation
4. Civil engineering
5. Tooling
6. Coatings
7. Adhesives
Storage Properties:
At least 12 months in sealed containers at ambient temperature. If NPEL-128 develops a haziness or crystallite on storage, it can be dispersed and the resin restored to its original condition by warming to 50～60℃, with stirring.
Handling Precautions:
Product may cause skin and eye irritation. In cases of skin contact, wash immediately with soap and water. For eyes, flush with plenty of water for 15 minutes and seek medical attention immediately.
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