Our Electrical Grade Kraft Insulation Paper is made from high-quality sulfate insulating wood pulp, offering excellent dielectric strength, mechanical durability, and stable chemical properties. It is widely used for conductor wrapping, layer insulation, and coil insulation in motors, transformers, capacitors, and oil-filled power cables. The paper features uniform thickness, smooth surface, and strong flexibility for aluminum and copper conductor insulation. It provides reliable performance during winding, forming, and long-term operation. Available in multiple thicknesses and roll widths with custom slitting, rewinding, and die-cut fabrication supported. Factory direct supply ensures stable quality, fast delivery, and flexible MOQ.
1. Soft, tough, and uniform structure with consistent thickness
2. Excellent mechanical properties, including high tensile, folding, and tearing strength, making it easy to wrap
3. Superior electrical performance with high dielectric strength and low dielectric loss
4. Resistant to high temperatures, high pressure, and vulcanization processes
5. Free from metal particles, sand, and conductive acidic substances; maintains stable performance after impregnation with insulating liquids
| Item | Units | Values | |||
| Nominal thickness | μm | 80 | 130 | 170 | |
| Thickness Deviation | μm | ±5.0 | ±7.0 | ±8.0 | |
| Density | g/cm3 | 0.90±0.05 | |||
| Tensile Strength | MD | KN/m | ≥6.2 | ≥11.0 | ≥13.7 |
| TD | ≥3.1 | ≥5.2 | ≥6.9 | ||
| Elongation | MD | % | ≥1.9 | ||
| TD | ≥5.4 | ||||
| Transverse tearing | mN | ≥540 | ≥1020 | ≥1390 | |
| Lateral folding resistance | times | ≥1200 | ≥2200 | ≥2500 | |
| Dielectric strength | kV/mm | ≥8.0 | |||
| Dry paper medialoss 100°℃ | % | ≤0.50 | |||
| Conductivity of water extract | mS/m | ≤8.0 | |||
| PHvalue of water extract | / | 6.5-8.5 | |||
| Air Permeability | μm/(Pa-s) | ≤0.510 | |||
| Ash Content | % | ≤0.7 | |||
| Moisture Content | % | 6.0-9.0 | |||
| Storage Conditions | It should be stored in the dry,clean,and good ventilation,temperature less than 40℃, no fire warmer, no exposure in sun. | ||||
| Period of Storage | Twelve Months | ||||
| Packaging | Roll packing | ||||
* Insulation layer for oil-paper insulated power cables
* Electrical insulation wrapping for aluminum and copper conductors
* Inter-turn and inter-layer insulation in motors and transformers
* Insulation material for capacitors and other electrical equipment
GBS Die Cut, as adhesive tape supplier, focuses on the research & development, production and sales of various types of adhesive tapes for different industries and has been authorized as golden distributor of many noted brands for so many years, such as Nomex, Formex, Rogers Poron, 3M, Tesa, and so forth.
Transformer insulation papers and flexible laminates are essential materials that ensure dielectric strength, thermal endurance, and mechanical stability in transformers, motors, and other electrical equipment. These materials are widely used
In the medical industry, medical tapes are not just for simple fixation; they play a crucial role in wound care, medical device adhesion, and surgical protection, directly impacting patient comfort
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