Insulation Paper
We are a manufacturer specializing in paper, film and insulation materials. We provide a full range of insulation paper products: including cable paper, capacitor paper, DDP paper, aramid paper, DMD paper, epoxy pre-impregnated DMD paper, Nomex paper, NHN paper, NMN paper, AHA paper, AMA paper,...
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction

We are a manufacturer specializing in paper, film and insulation materials.
We provide a full range of insulation paper products: including cable paper, capacitor paper, DDP paper, aramid paper, DMD paper, epoxy pre-impregnated DMD paper, Nomex paper, NHN paper, NMN paper, AHA paper, AMA paper, PMP paper, etc.
Product customization range:thickness, width, temperature resistance level, logo customization
Products Description
Electrical insulation cable paper:
Cable paper, also known as insulation paper, is an indispensable material in power transmission systems. Its main component is wood cellulose, a natural fiber material that gives cable paper good insulation properties and mechanical strength. Cable paper is made of 100% high-quality sulfate insulation wood pulp, and is finely processed and specially treated to ensure its excellent electrical performance and durability.
Product advantages:
It has good high temperature resistance and electrical insulation, and can act as an insulating material in oil-immersed transformer windings.
It has good stability, and the service life of the product is between 3-5 years.

Product thickness: 0.1-0.5mm
No. |
Item |
unit |
Q/JLLS 20471 - 2023 Requirement |
Electric Power Cable Paper DDP - 80 Result |
|
1 |
Thickness |
μm |
80±5% |
81.3 |
|
2 |
Density |
≥ |
0.90 |
0.95 |
|
3 |
Tensile strength |
|
kN/m |
6.2 |
8.3 |
4 |
Elongation |
|
% |
2.0 |
2.7 |
5 |
Tearing resistance |
|
mN |
500 |
902 |
6 |
Electrical strength(AC) |
≥ |
8.0 |
10.5 |
|
7 |
pH of water extract |
6.5 - 8.5 |
7.0 |
||
8 |
Conductivity of water extract |
≤ |
10.0 |
3.0 |
|
9 |
Air permeability |
≤ |
35 |
12 |
|
10 |
Ash content |
≤ |
0.7 |
0.3 |
|
11 |
Moisture content |
% |
6.0 - 9.0 |
7.5 |
|
12 |
Smoothness |
≥ |
30 |
42 |
DDP Insulation paper
DDP insulating paper is a special modified epoxy resin coated on high-performance insulating paper in a diamond shape. It is widely used in interlayer insulation and turn insulation of oil-immersed power transformers.

- Raw materials: kraft pulp + epoxy glue
- Glue content: conventional 10 filaments, 5 filaments
Diamond glue point customization:
-Different color pastes
-Different sizes (conventional is 8*8/9*9)
-Large diamond glue points
- Application transformer range: ≤35KV or less
- Commonly used in composite scenes: copper foil + DDP/copper wire + DDP winding
- Conventional thickness: 0.08mm, 0.10mm, 0.13mm, 0.18mm, 0.25mm, 0.30mm, 0.35mm, 0.40mm, 0.50mm
- Maximum slitting width: 100mm
- Weight per roll: 100KG-200KG
ITEM |
TYPICAL VALUES |
MATTER OF FACT |
Base paper thickness mm |
0.15±10% |
0.156 |
Resin thickness single side mm |
0.006 - 0.012mm |
0.008 |
DDP thickness (just for reference) |
Base paper + resin |
0.169 |
Width: mm |
950±5 |
953 - 955 |
Apparent density: g/cm³ |
0.93 - 1.02 |
0.95 |
Moisture content , % |
4.0 to 8.0 % |
7.2 |
PH water extract: |
6.5 to 8.5 |
6.8 |
Ash content, % maximum |
≤0.8 |
0.5 |
Conductivity of aqueous extract Ms/m |
≤8.0 |
2.7 |
Elongation MD % |
≥2.1 |
2.3 |
Edge Internal tearing resistance N |
53.4 |
|
Tear strength, mN |
≥1700 |
1900 |
Tensile strength, N/mm² |
≥70 |
97.3 |
Dielectric breakdown: |
≥1200 |
1867 |
Bond strength: Kpa |
≥450 |
867 |
DMD insulation paper
6630 DMD Insulation paper
6630 DMD, this product is a composite insulation material product made of a layer of polyester film coated with an adhesive, one side of which is a polyester fiber non-woven fabric, and calendered. It is referred to as DMD.
6630 DMD composite material has good mechanical strength, dielectric properties and high heat resistance (B grade). It is a standardized insulation material for Y series motors and can be used as slot insulation, inter-turn and inter-layer insulation, liner insulation core and transformer insulation for small and medium-sized motors.

Product name: Polyester film, polyester fiber, non-woven fabric, soft composite material
Product color: white
Thickness: 0.10mm-0.50mm
Width: 980mm-990mm
Taping: 10mm wide or more
Slice: Maximum 1000mm*900mm
No. |
Indicator Name |
Unit |
Indicators |
1 |
Nominal Thickness |
mm |
0.15, 0.18, 0.20, 0.23, 0.25, 0.30, 0.35, 0.40, 0.45 |
2 |
Thickness Limit Deviation |
mm |
±0.02, ±0.025, ±0.03, ±0.03, ±0.03, ±0.03, ±0.035, ±0.040, ±0.045 |
3 |
Nominal Basis Weight and Limit Deviation |
g/m² |
140±20, 190±28, 220±33, 260±39, 300±45, 350±52, 425±63, 500±75, 560±84 |
4 |
Nominal Thickness of Film |
mm |
0.05, 0.075, 0.10, 0.125, 0.15, 0.19, 0.25, 0.30, 0.35 |
5 |
Tensile Strength |
N/10mm |
Longitudinal (Unbent): ≥80, ≥120, ≥140, ≥180, ≥190, ≥270, ≥320, ≥340, ≥370 |
6 |
Elongation |
% |
Longitudinal (Unbent): ≥15 |
7 |
Breakdown Voltage |
KV |
≥6, ≥7, ≥9, ≥10, ≥12, ≥15, ≥18, ≥20, ≥22 |
8 |
Normal - state Adhesion |
- |
No delamination |
9 |
Hot - state Adhesion (155±2℃, 10 min) |
- |
No delamination, no blistering, no glue flow |
10 |
Temperature Index |
℃ |
130 |
6641 DMD-F is made of 6020/6021 transparent or milky polyester film with 7031 electrical non-woven fabric on both sides. The adhesive used is acid-free and high temperature resistant.
Performance:
6641 DMD Insulation paper has good mechanical and electrical properties, temperature grade F (155℃).
Coil: Uncut width 1005mm, cut width 990mm
Sheet: Any length and width within 990*1000mm
Reel: 5mm-990mm
Roll diameter: not less than 300mm
Core size: conventional 76mm

Hot Tags: insulation paper, China, suppliers, wholesale, buy, price, Silicone Paper For Baking, Pet Based Release Coating Film, Silicone Cake Baking Paper, Pe Coated Paper Roll Foaming, White Baking Paper Sheet, Clear PET Film For Bag
No Information