The base paper of our company‘s DDP is the best quality raw paper all around China.

DDP is an insulating material which is coated with special modified epoxy resin in diamond shape on electrical insulating paper. Diamon dotted paper is a kind of special modified epoxy resin which is coated on high performance insulating paper in a rhombic shape. It can be used as turn insulation and interlayer insulation of coil conductor of oil-immersed power transformer. The wire baking is enough to prevent the displacement of each layer of wire resistance, thus ensuring the stable electrical and mechanical properties of the product insulation structure.

 

1. appearance
Surface should be uniform, no hair, no bubbles, pinholes, wrinkles and defects, etc.

2. Curing Conditions of Products
Firstly, under the condition of 90 (+5 (+) for 3 hours, the temperature rises to 125 (+) 5 (+), and then cures completely under the condition of 6 hours.

3. Storage conditions
It should be stored in a dry and clean room with temperature not higher than 25 C. It should not be illuminated by fire source, heating or sunlight. The storage period is one year; if it exceeds the storage period, it can still be used if it is qualified.
Rubber-coated insulating paper is a kind of special modified epoxy resin which is coated on high performance insulating paper in a rhombic shape. It can be used as turn insulation and interlayer insulation of coil conductor of oil-immersed power transformer. The wire baking is enough to prevent the displacement of each layer of wire resistance, thus ensuring the stable electrical and mechanical properties of the product insulation structure.

 

Our company has 60 years’ production experience. The DDP is certified by ROHS. It has the most advanced diamond dotted paper production line in China, with a monthly output of 60 tons. The base paper is the best quality raw paper all around China. Our DDP can be 960mm, 980mm, 1000mm, 1200mm, 1600mm, 1800mm, 2000mm in width, and can be cut to a width of 20mm or more according to different customers’ requirements. What’s more, it can be packed in a variety of sizes, in small rolls (50kg/roll). Our products are always rich in stock. The customers are all over the world, Europe, Asia, Africa, North America, Oceania etc.

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