High Crosslinking Density PNE Type Phenolic Epoxy Resin HWR-639
General:
Phenolic Epoxy Resin HWR-639 is PNE type, BNE type and CNE type resin. It is widely used in electronic copper clad laminates, electronic laminates, heat-resistant adhesives, composites, high-temperature coatings, civil engineering and electronic inks.
It has high crosslinking density, excellent bonding strength, heat resistance and chemical resistance
Sale Specification & Typical Properties:
| Item |
Specification |
| Epoxy equivalent weight (g/eq) |
174-180
|
| Color(Gardner) |
1.0 Max. |
| Hydrolyzable chlorine (ppm) |
300 Max. |
| Appearance |
Transparent without impurity |
|
|
44-50
|
Application:
Suitable for high-temperature coatings, electronic laminates, civil engineering.
Storage properties:
It has a shelf life within one year if stored in a cool and dry place.If epoxy resin128 develops a haziness or crystallite on storage, this can be dispersed and the resin can be restored to original state by warming up to 50～60℃, with stirring.
Packing:
200 kg/220kg in iron drum.
