Our NMN Nomex Insulation Paper is a three-layer (nomex+mylar+nomex) composite electrical insulation material made of two outer layers of Nomex aramid paper laminated with a Mylar polyester film core. It combines excellent thermal resistance, tear strength, and mechanical durability with high dielectric strength and dimensional stability. NMN insulation paper is widely used for slot insulation, phase-to-phase insulation, interlayer insulation, and liner insulation in Class F and Class H motors and electrical equipment. The material is supplied with a standard 3-inch core and is available in rolls, slit tapes, or sheets. Typical roll weight is 60–70 kg, with standard widths ranging from 3.5 mm to 914 mm. Custom sizes are available upon request.
1. Three-layer composite structure with Nomex aramid paper and polyester film core
2. Excellent thermal resistance suitable for Class F and Class H insulation systems
3. High dielectric strength and reliable electrical insulation performance
4. Good mechanical strength with resistance to tearing and abrasion
5. Stable dimensional performance under thermal and electrical stress
6. Easy to process into rolls, slit tapes, or sheets
7. Available in a wide range of widths and customizable sizes
| NO. | Properties | Units | Values | |||||||
| 1 | Nominal thickness | mm | 0.14 | 0.15 | 0.18 | 0.2 | 0.25 | 0.23 | 0.35 | 0.38 |
| 2 | Thicknessallowed tolerance | mm | ±0.01 | ±0.02 | ±0.02 | ±0.03 | ±0.03 | ±0.03 | ±0.04 | ±0.04 |
| 3 | Nominal grammage | g/m2 | 140 | 180 | 210 | 250 | 270 | 300 | 360 | 460 |
| 4 | Grammageallowedtolerance | g/m2 | ±17 | ±20 | ±30 | ±30 | ±35 | ±40 | ±50 | ±50 |
| 5 | Film nominal thickness | um | 50 | 75 | 100 | 125 | 140 | 165 | 200 | 265 |
| 6 | Tensile strength(MD) | N/10mm | ≥100 | ≥150 | ≥160 | ≥180 | ≥200 | ≥220 | ≥270 | ≥320 |
| 7 | Tensile strength(XD) | N/10mm | ≥80 | ≥90 | ≥110 | ≥130 | ≥150 | ≥180 | ≥200 | ≥250 |
| 8 | Elongation(MD) | % | ≥10 | ≥10 | ≥10 | ≥12 | ≥12 | ≥12 | ≥12 | ≥12 |
| 9 | Elongation(XD) | % | ≥15 | ≥15 | ≥15 | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 |
| 10 | Electric breakdown voltage | KV | ≥6 | ≥7 | ≥10 | ≥11 | ≥12 | ≥13 | ≥15 | ≥20 |
| 11 | 10Min Bond strength at 180±2℃ | No delamination, no blister, no adhesive flow | ||||||||
* Slot insulation in Class F and Class H motors
* Phase-to-phase insulation in electric motors and generators
* Interlayer insulation for motor windings
* Liner insulation for electrical machines
* Insulation components in transformers and other electrical equipment
1. Store in a dry and clean room at room temperature.
2. Do not approach fire sources, heating, or direct sunlight.
3. The storage period is generally 12 months. If it exceeds the storage period and passes the technical standard inspection, it can still be used.
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.
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