insulating varnish R-1040 1.High solid content 2.once impregnation available 3.good manufacturability 4.stable storage
insulating varnish R-1040
1.made from epoxy resin, hardener and mixed solvent etc.
2. used for immersion of class B and F motor.
3 Technical Data
Properties | Unit | Standard Values | |
appearance | Light yellow to brown liquid, clear | ||
Viscosity, 23, Tu-4# cup | seconds | 25-45 | |
Solids content, 105±2,2h | % | ≥70 | |
Curing in thick layer 140, 4h | - | Not worse than S1, U1, I4.2 | |
Dielectric strength | At room temperature | MV/m | ≥70 |
Volume resistivity | 23 | Ω.m | ≥ 1×1012 |
After immersion in water, 24h | ≥ 1×1011 | ||
At 155±2 | ≥ 1×107 | ||
dielectric loss factor | 23 | - | ≤0.01 |
155±2 | ≤0.05 | ||
Drying time | 140 | min | ≤60 |
Insulating Varnish of epoxy solvent R-1040
