Prepreg DMD
Properties
Prepreg DMD is formed in the process of precuring the modified F-class DMD with Impregnation of hi-temp resistant B-stage Epoxy resin by baking. With long shelf life at room temp, low precuring temp & time, excellent electrical insulation, bonding and heat-resistant properties. Its thermal Glass is F, widely used for liner insulation of copper foil (aluminum foil)-wrapped Low voltage coils in dry-type transformer and slot insulation & phase insulation in B~F class Motor & electrical appliances.
Data Form
| Properties |
Unit |
Value |
| Nominal thickness |
mm |
0.18 |
0.20 |
0.23 |
0.25 |
| THK Tolerance |
mm |
±0.030 |
±0.035 |
| Tensile Strength MD No bending |
N/10mm |
≥70 |
≥80 |
≥100 |
| Soluble Resin content |
g/m² |
75±15 |
| volatile content |
% |
≤1.5 |
| Dielectric Strength |
MV/m |
≥40 |
| Appearance |
Neat and smooth surface, No obvious non-uniform resin, No inclusions against quality, No surface damage at unreeling. No bubbles, folding damage etc. |
Application Suggestion
| Temp(℃) |
Room Temp→80 |
80 →120 |
120 →150 |
150 →120 |
120 →80 |
| Heating time(h) |
0.5 |
0.5-1 |
0.5-1 |
1 |
0.15 |
| Baking time(h) |
1~2 |
2~4 |
4 |
1~2 |
2 |
Specification
- 1. Standard width: 1000mm, or slit into the width required Packing: In Carton
- 2. Min Qty: 1000kg each size in a lot.
- 3. Shelf life: 6 months at 25c from the date of delivery. Over the period, it can be still be used if the re-testing is in agree with the technical requirements. The rolls should stand up, far from heat sources, fire and sunshine.
Note:The values noted in above technical specification are given only for our customers' reference and should not be used in writing specifications.
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