Fiberglass Net Unidirectional Weft less Tape - WWD
Fiberglass net unidirectional weftless tape is composed by No alkali fiberglass and Heated cured unsaturated polyester resin.It has specially mesh structure so that it has good softness and also it is easy to be used.
Thermal class: H
Application: It is widely used in the binding of motor, transformer and so on.
Specification:
Model | Thickness(mm) | Tolerance(mm) | Width(mm) | Tolerance(mm) | Minimum package |
WWD | 0.17 0.30 | ±0.03 | 10-50 | ±2 | 100-200m/rolll |
Curing condition(excluding the work piece heating time):
Temperature | ℃ | 160 | 150 | 135 | 120 | 115 |
time | hours | 2.5 | 3 | 5 | 14 | 20 |
Storage:
Storage temperature(℃) | 10 | 15 | 20 | 30 |
Time(month) | 8 | 6 | 4 | 2 |
Item | Unit | Index | Item | Unit | Index |
Thermal class | ℃ | H 200 | Ring pattern normal stretch strength(20℃) | MPa | ≥1250 ≥1000** |
Volatile content | % | ≤2 | Ring pattern hot stretch strength(200℃) | MPa | ≥900 ≥700** |
Resin content | % | 26±2 | Track resistance index | V | ≥500 |
Soluble resin content | % | ≥90 | Electric are resistance | S | ≥160 |
Tensile strength before curing | N/cm | ≥2000 | Electric strength | KV/mm | ≥12 |
Maximum bandaging tension | N/cm | ≥1000 | Solidification | _ | Easy to peel, non-sticky |
Tensile strength deterioration rate after oil soaking | % | ≤10 |
