Supplier From
Xuchang City,
China
Supplier From
Xuchang City,
China
Diamond dotted paper (DDP) is an electrical insulation presspaper partially coated with heat-curable epoxy resin dots arranged in a diamond pattern. During coil drying / oven heating, the resin dots soften and cure to bond adjacent layers, helping improve winding mechanical stability in transformer manufacturing.
DDP insulation paper is commonly used as interlayer insulation between coils in oil-immersed transformers, where controlled bonding is needed without sacrificing oil impregnation and drying efficiency.
Chengrui Insulation can provide DDP insulation paper in rolls with different thicknesses, widths, and slitting options according to production requirements. Our team can help confirm roll size, resin dot pattern requirements, packing method, sample availability, and bulk order delivery schedule.
Type: Insulation paper
Heat resistance: Class A 105�°C
Thickness: 0.08mm, 0.13mm, 0.15mm, 0.17mm, 0.20mm, 0.25mm, etc
Width: 960mm, 1000mm, 1100mm, 1300mm or customized
Color: Natural