Flexible Insulation Laminates

NMN / NPN Flexible Laminate Insulation
Nomex / Mylar / Nomex – Class H (180°C) Electrical Insulation

NMN (also referred to as NPN) is a premium triple-layer flexible insulation composed of two outer layers of Nomex® aramid paper bonded to an inner layer of Mylar® polyester film. Rated for Class H electrical systems, it provides outstanding thermal endurance, dielectric strength, and mechanical stability. Commonly used in high-temperature motors, generators, and transformers.

Key Features:

• Triple-layer laminate: Nomex / Mylar / Nomex construction offers superior insulation, tear resistance, and thermal endurance
• Class H thermal rating: Withstands continuous operating temperatures up to 180 °C
• High dielectric performance: Reliable insulation for demanding electrical applications
• Flexible and process-friendly: Easy to cut, wrap, and form during installation

Typical Applications:

• Slot, phase, and interlayer insulation in motor rewinding and transformer manufacturing
• Used in dry-type transformers, generators, and Class H rated electrical assemblies

Available Options:

• Roll width: 914 mm
• Supplied by the cut metre or as a full 50 m roll
• Standard lay-ups (outer / film / outer):

Format: outer layer / polyester film / outer layer

Part of our flexible laminate range, NMN is a dependable insulation material for high-temperature electrical systems where Class H performance, flexibility, and long-term reliability are essential. Pair with high-temperature sleeving or insulating varnishes and resins for a complete insulation system.

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