Shanghai, China
Business Type:
Number of Employees:
Year of Establishment:
Management System Certification:
ISO9001:2008, ISO14001:2004
Average Lead Time:
Peak season lead time: 1-3 months
Off season lead time: within 15 workday
OEM/ODM Service

Kraft Paper, DDP, Insulation Paper manufacturer / supplier in China, offering Insulation Paper Diamond Dotted Paper (kraft paper), Hot Sale Electrical Material Electrical Insulating Paper Nhn (H CLASS), Diamond Pattern Resin-Coated DuPont Nomex T410 and so on.

Gold Member Since 2016
Audited Supplier
Supplier Homepage Products Insulation Insulation Paper Diamond Dotted Paper (kraft paper)

Insulation Paper Diamond Dotted Paper (kraft paper)

Get Latest Price
Min. Order / Reference FOB Price
500 kg US $2.6-2.95/ kg
Port: Shanghai, China
Production Capacity: 10, 000, 000 Kg+
Payment Terms: L/C, T/T, Western Union, Paypal
Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Transformer\Capacitor\Reactor
Type: Insulation Paper
Chemistry: Inorganic Insulation
Material: Paper
Thermal Rating: B 130
Maximum Voltage: <10KV

You Might Also Like


Basic Info

Model NO.: DDP-kraft paper
Classification: Inorganic Insulation Material
Certification: ISO9001
Color: Brown
Brand: Yuxiang\Yohann
Trademark: Yuxiang
Transport Package: Carton
Origin: Shanghai, China

Product Description

Description: DDP is produced by coating modified epoxy-resin in diamond-dotted patterns on electrical insulating paper.
Advantages: In the process of coil desiccation, the coated epoxy-resin would be melted in a certain temperature and become adhesive. With the temperature increased, the melted resin would cure to C-stage, and firmly adhere each adjoining layer of the coil, thus forming a winding section. If a short circuit occurs in the coil, the resin bond strength would sufficiently prevent the displacement of each winding layer, which ensures the long-term mechanical and physical properties of the insulation structure. As the resin coating distributes in a diamond-dotted pattern, little quantity of the resin would soak into the insulating paper during the melting and curing process, which ensures the elimination of air content in the insulating paper and guarantees the soakage of oil, minimizing the damages of corona and partial discharge.
Applications: It is suitable for turn-to-turn insulation of coil wires on oil-immersed power transformers and suitable for layer insulation of coils on distribution transformers.

1Thickness and Tolerancemm0.08
3One Side Coatingµm6~1210~15 
4Moisture Content %4.0~8.0 
5Ash Content %                              ≤1.0 
6Water Extraction of Electrical ConductivitymS/m≤10 
7PH Water Extract 6.5~8.5 
8Oil Absorption%≥20 
Normalcy         Kpa≥650
10Tensile StrengthTD 
2.Curing conduction stock
2.1 Curing: 90ºC±2 ºC/3h firstly , then130ºC±5ºC/6h,  or according customer needs
2.2 Storage: ≤30ºC, dry, clean in warehouse. Avoid fire, heat and sunlight.
2.3 Storage life: 6 months. Still effective if qualified in retest after 6 months.

Send your message to this supplier

avatar Miss Lily. Wang

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now

You Might Also Like


Contact Supplier

Miss Lily. Wang
Trade Manager