Kraft And Diamond Dotted Paper

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Kraft and Diamond Dotted Paper



DDP (2)

Our firm is recognized as the prominent entity of this market, indulged in presenting excellent quality Diamond Dotted Paper, which is fully tested and approved to use as insulation material in transformers industry applications. The offered paper is manufactured in compliance to our high-end production unit employing cutting-edge technology. All phases are completed in conformity with enforced norms of industry. To make our Epoxy Diamond Dotted Paper a perfect fit for every application, we offer it in various sizes at very competitive price.


Diamond Dotted Presspaper improves the mechanical strength of oil-filled transformer windings without reducing partial discharge levels. The size and shape of the dots are carefully chosen to avoid interfering with vacuum drying and oil impregnation.

During B-stage, the resin dots are dry and tack-free, permitting storage and handling similar to normal presspaper. When the winding is heated for drying purposes, the adhesive dots melt and cure, thus creating permanent bonding sites unaffected by further heating cycles that may occur in service. The bonding strength is adequate to support effective gluing in unsupported coil design.

The pinhole-free multi-ply paper allows single layer application in LV foil windings. Temperature rise time in the drying oven is important, particularly during the final transition to the temperature at which the resin starts to melt. To obtain maximum bond strength, this transition should be completed as swiftly as possible. The drying requirements of the transformer normally provide for adequate curing of the resin. 

hechin company

Kraft paper is available with both sides of diamond dotted pattern epoxy resin, which is consisted of 9.5 × 9.5mmdiamonds with 15.9mm center spacing

Used in oil-immersed transformers for the insulation betweenthe coils

Dotted epoxy resin melts at high temperature

A kind of inertia material, dry and no congratulation at normaltemperature (below 30°C)

Diamond dotted paper will make the electric conductor felt upas a hard unit under the high temperature by its internal latencysubstance

When the temperature rises up to 90°, the diamond dottedpaper begins one-off thaw and then one-off solidification

When to keep the temperature at 90° for 180 minutes, theepoxy resin would paste on neighboring cable and paper firmly


Welcome to contact Haotai, which is one of best kraft and diamond dotted paper manufacturers and suppliers in China, you can also get kraft and diamond dotted paper free sample from our factory.
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