Diamond Dotted Polyester Mylar Film(DDM) Insulation
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COLORred；customized
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FREE SAMPLEA4
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THERMAL CLASSB 130℃
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AVAILABLE WIDTH1000mm/customized
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THICKNESS0.05-0.10mm
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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 applicationItem 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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