产品介绍 Product introduction
DMD/DMD Prepreg Insulating Material For Electrical Use

       The electrical-use sort insulating prepreg combined with polyimide film and polyester fiber and impregnated with Epoxy Resin belongs to F class insulating material. They are widely used in the layer insulation of transformer, wire casing insulation and phase coil insulation of motor. The product is bright in color, high voltage resistance, even coating, complete in specifications and stable quality. It is widely used as ideal banding materials for electrical motors, transformers and lightening arresters.


Property：

Type

6440

Thermal class

F

Tensile Strength

≥70 (Thickness0.18)

Soluble Resin Content (g/m2)

≥45

Volatile content

≤1.5

Loss of weight at calcination

20±2

Breadown Voltage(KV)

≥7.0 (Thickness0.18)

Tensile strength before curing

≥3.0

Maximum pull while banding

≤70（Thickness0.18)

Specification: ：

Type

Thickness(mm)

Width(mm)

Length(m)

6440

0.15、0.18、0.2、0.25、0.3、0.4

1000/1200

200

      *Special specification and package are availabe upon request

Storage stabiliy:

Storage temperature ℃

≤40℃

Time (day)

360

 

DMD prepreg and Glass Fiber Mesh Used in Transformer


DMD prepreg Used in Transformer