Varnish for Refrigerant
V565-20 and V565-30 are refrigerant-resistant varnishes used in the insulation process of air conditioner and refrigerating machine motors. They are solventless type varnishes that can be applied to a new refrigerant such as R407C.
Product name
Varnish for refrigerant (V565-20 and V565-30)
Characteristics
- Excellent refrigerant and solvent resistance
- Low-odor and solventless type. This has no losses and conforms to the VOC regulation.
- Excellent impregnation ability and workability with low viscosity and a long pot life
- Excellent compatibility with self-lubrication wires, and high adhesive strength at high temperatures
- UL1446 certified product (Wire MW35)
Application example
- For impregnation of air conditioner and refrigerating machine motor coils
- For impregnation of sealed motor coils, etc.
General characteristics
Table General characteristics of V565-20/V565-30 (representative values)
| Item | Condition | Unit | V565-20 | V565-30 |
| Viscosity | 25℃/B type | mPa・s | 180 | 40 |
|---|---|---|---|---|
| Specific gravity | 25℃/areometer | － | 1.12 | 1.11 |
| Hardener | V066-00 | phr | 1 | 1 |
| Standard cure condition | 160℃ | h | 2 | 2 |
| Pot life | 40℃ | Day | 30 | 30 |
| Volume resistivity | Normal state | Ω・cm | 1.3×1015 | 1.1×1015 |
| After submergence | 3.4×1014 | 2.8×1014 | ||
| Breakdown voltage | Normal state | kV/mm | 17.2 | 15.8 |
| Helical coil fixing strength | Self-lubrication wire 0.85 mmφ | N | 145 | 104 |
| AI/EI 0.85 mmφ | 152 | 110 | ||
| Chloroform extraction | Soxhlet extraction | % | 0.75 | 0.71 |
| Methanol extraction | Soxhlet extraction | % | 0.43 | 0.31 |
| UL1446 MW35 | TP | ℃ | 220 | 200 |
| HC | 220 | 180 |
Refrigerant extraction characteristics
