VUPOXY E-2K
Application
It is suitable for impregnation and fortification of highly stressed rotor windings of hand tools and domestic appliances up to thermal class H.
Characteristics
Trickling impregnating resin E 2007 is liquid trickling based on epoxy without thinner. It is homogenous, good adhesive, with high mechanical and electrical strength, with low level of volatile substances. It is processed by trickling on all kinds of common impregnation machines with blending equipment for mixture of epoxy resin and hardener.
Mixture ratio:
- Epoxy resin E 07 – weight ratio 100
- Hardener AT 07 – weight ratio 33
Tab.1 Product specification
| Epoxy resin E 07 – liquid modified epoxy resin | ||||
| Viscosity | 25 °C | viscometer Brookfield | [mPa.s] | 1640 |
| Density | 25 °C | [g.cm-3] | 1,13 | |
| Hardener AT 07 – liquid amine hardener | ||||
| Viscosity | 25 °C | viscometer Brookfield | [mPa.s] | 416 |
| Density | 25 °C | [g.cm-3] | 0,99 - 1 | |
Processing data
Pic.1 Temperature – viscosity curve
Pic.2 Time – viscosity curve
Pic.3 Gel – temperature curve
Tab.2 Mechanical and electrical properties
| Cure time 130 °C | [h] | 0,5 |
| Twisted coil 1) 23 °C 130 °C 155 °C 180 °C |
[N] | 633,4 184,3 79,4 60 |
| Electrical strength of enamelled wire 2) 123 °C 180 °C after 96 h in 92 % water 23 °C |
[kV/mm] | 178 103 55 |
1) STN IEC 61033/A
2) STN EN 60243
Packing and storage
Impregnating resin is delivered in non-returnable, clean, for other products not used packages according to agreement between producer and client.
Impregnating resins are stored in tightly closed packages in dry ventilated warehouse by max. +25 °C.
