Three-layer composite: Aramid paper /Polyimide film / Aramid paper
Standard: IEC60626-3:2002 /GB/5591.3-2008
Width: 10-914mm(Support customization)
Thickness: 0.15/0.20/0.25/0.30(mm)
Heat resistance: ClassF (180 °C)
MOQ: 500KG
Application: Electrical insulation for motors, transformers, generators, etc
AHA composite material (commonly known as AHA insulation paper) is a high-performance, flexible three-layer composite insulating material. It is mainly composed of two layers of aramid paper and a middle layer of polyimide film, laminated together with high-temperature-resistant adhesive.
It combines excellent thermal resistance, outstanding mechanical strength (tensile and tear resistance), and superior dielectric properties, making it an ideal choice for high-temperature motors, as well as slot and phase insulation in transformers.
High-temperature motors and generators
Power transformers (slot insulation, phase insulation)
High-voltage electrical equipment
Coil insulation systems

1.Factory: We operate a professional electrical insulation materials manufacturing facility and are ISO-certified.
2.Fully Automated Production: Our advanced automated workshop is supported by a strict and comprehensive quality management system.
3.Quality Inspection: Equipped with four major laboratories and five core product performance testing capabilities.
4.Processing Services: We provide customized processing solutions based on your requirements, ensuring high quality and on-time delivery.
5.Product Certification: Our products comply with UL, SGS, RoHS, and REACH standards. Sample testing is available upon request.
6.Ready Stock Supply: Standard products can be delivered within 7–15 days.

Our company is certified to ISO 9001, ISO 14001, and ISO 45001 management systems. Our products also comply with international certifications and reports including UL, RoHS, REACH, MSDS, CEMT, as well as factory inspection and test reports provided before shipment.

Packed in rolls in cartons, stored at room temperature away from sunlight and fire, storage period 12 months.

| Properties | Item | Unit | Index | ||||
| Specifications | Total thickness | mm | 0.15 | 0.2 | 0.25 | 0.3 | |
| Film thickness | µm | 25 | 90 | 130 | 175 | ||
| Thickness tolerance | mm | ±0.02 | ±0.03 | ±0.03 | ±0.04 | ||
| Physical properties | Tensile strength | MD Unfolded | ≥N/10mm | 100 | 140 | 180 | 230 |
| MD Folded | ≥N/10mm | 60 | 80 | 140 | 160 | ||
| CMD Unfolded | ≥N/10mm | 70 | 90 | 110 | 140 | ||
| CMD Folded | ≥N/10mm | 50 | 70 | 90 | 100 | ||
| Elongation | MD | ≥% | 10 | 10 | 10 | 10 | |
| CMD | ≥% | 8 | 8 | 8 | 8 | ||
| Electrical properties | Breakdown voltage | Unfolded | ≥KV | 8 | 9 | 9 | 9 |
| Folded | ≥KV | 7 | 8 | 8 | 8 | ||
| Temperature index | ℃ | 180℃ | |||||