F-Class DMD Prepreg is made by impregnating F-Class DMD with modified epoxy resin and partially curing it to a controlled B-stage condition. During final heat treatment, the resin cures and bonds the insulation to the winding conductor or foil.
F-Class DMD Prepreg is made by impregnating F-Class DMD with modified epoxy resin and partially curing it to a controlled B-stage condition. During final heat treatment, the resin cures and bonds the insulation to the winding conductor or foil.
It is selected for dry-type transformer coils where electrical insulation and winding consolidation are required in one material.
| No. | Parameter | Unit | Specification | |||||
| 1 | Nominal thickness | mm | 0.15 | 0.18 | 0.2 | 0.25 | 0.30 | |
| 2 | Tensile strength | Before bending MD | N/10 mm | ≥70 | ≥80 | ≥100 | ||
| 3 | Tensile shear strength | MPa | ≥3.0 | |||||
| 4 | Soluble resin content | g/m² | ≥45 | |||||
| 5 | Breakdown voltage | kV | ≥7 | ≥8 | ≥10 | |||
| 6 | Temperature | ℃ | ≥155 | |||||
| Nominal thickness: 0.15 mm, 0.18 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.40 mm Nominal width: 1000 mm | ||||||||
Specification Confirmation：The values shown above represent common market options. Final dimensions, thermal class, performance requirements and inspection documents are confirmed before order.
