Transformer Insulation Materials
Crepe Paper
High-elongation crepe insulating paper for wrapping and layer insulation
Crepe insulating paper with high elongation and a soft, conformable hand for wrapping magnet wire, layer insulation, current transformers, RIP bushings and shielding materials.
Class A (105°C)Elongation 15–300%Base paper 25–180 g/m²
- Temperature class
- Class A (105°C)
- Base paper
- 25–180 g/m²
- Elongation
- 15–300%
- Breakdown voltage
- ≥950–1000 V/layer
Request a quotation or a sample. Tell us thickness, width, temperature class, quantity and delivery form. We reply within one business day.
Technical data
| Property | Unit | Value |
|---|---|---|
| Base paper grammage | g/m² | 25–180 |
| Crepe paper thickness | mm | 0.35–0.90 (by base paper) |
| Elongation | % | 15–300 |
| Breakdown voltage | V / layer | ≥950–1000 |
| Tensile strength MD / TD | N | 30–50 / 20–40 |
| Flexibility | % | ≥50 |
| pH value | — | 6.0–8.0 |
| Ash | % | ≤0.7–0.8 |
| Moisture | % | ≤7.0 |
| Temperature class | — | Class A (105°C) |
Values are typical values or ranges from our product data. Bulk supply is subject to the approved specification, sample and test report. If a parameter you need is not listed here, ask our engineers for the full test report for that grade.
Key features
- Creped structure provides high elongation and conformability around irregular conductors.
- Multiple base-paper thicknesses and roll sizes for manual or automated wrapping.
- Low ash and neutral pH for oil-immersed insulation systems.
Applications
Magnet-wire insulation, layer insulation, current transformers, RIP bushings and shielding materials.
Oil-Immersed TransformersInstrument TransformersSwitchgear & Electrical Equipment
Why it fits
Soft and stretchable - it follows the conductor instead of fighting it, which matters most on hand-wrapped and reshaped leads.
Ordering information
To receive a quotation, please confirm:
- Product and grade
- Thickness and width (and roll or sheet size)
- Temperature class
- Quantity and delivery form (roll / sheet / die-cut / machined)
- Destination port and required delivery date
For machined parts, attach a drawing in PDF, DWG or STEP format. Datasheets, COAs and batch test data are available on request.
Related materials
Often specified together
Send your specification
Our export team reviews the application, the process and the existing specification before recommending a construction.