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Diamond Dotted Polyester Mylar Film(DDM) Insulation

Diamond Dotted Polyester Mylar Film(DDM) Insulation

It is produced by coating modified epoxy resin in diamond dot patterns on electrical insulating film.

color：

red/customized

Free sample：

Thermal Class：

B 130℃

Available width：

1000mm/customized

Thickness：

0.05mm - 0.10mm

Quantity

Description
Application
Related Product

Diamond Dotted Polyester Electrical Insulation Film

Description:

It is also known as DPF. The use of this B-stage resin coated film increases the mechanical strength of transformer coils. It is produced by coating modified epoxy resin in diamond dot patterns on electrical insulating film. The size of the dots are carefully designed and arranged to cover only 36% of the surface, remaining 64% free for optimum CFS 6 gas distribution.

Advantages:

After curing, the pre preg resin cures from stage B(pre preg) to stage C(cured), adhering to any metallic surface and creating micro channels for optimal gas distribution. The bonding strength is adequate to support effective gluing in unsupported coil design.

Application:

• Dry type transformer layer insulation
• Oil filled transformer layer insulation
• SF6 high current voltage transformer wire winding insulation or layer insulation film
• Motor slot insulation, or phase insulation film
• Also suitable for Automobile, Electronic application

Item		Unit	Value
Nominal Thickness		mm	0.05	0.075	0.10
Thickness Tolerance		mm	±0.005	±0.01	±0.01
Standard Width		mm	1000mm
Tensile Strength	Lengthwise	Mpa	≥100
	Crosswise		≥90
Breakdown Voltage		KV	≥6	≥6.5	≥7
Bond Strength		Kpa	≥350
Curing Temperature and Time		90℃±5℃/16h or 130℃±5℃/6h
Storage Life		month	6 months, room temperature, dry and well-ventilated environment

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