Aramid Paper

Product Introduction

Aramid Paper is a high-performance electrical insulation material made from aramid fibers, which are synthetic fibers known for their exceptional strength, heat resistance, and stability. It is widely recognized as one of the most reliable insulation materials in the electrical and electronic industries.

This paper offers excellent dielectric properties, outstanding thermal endurance, and superior mechanical strength, maintaining stable performance even under high temperatures up to 220°C (Class H insulation). It is also resistant to moisture, chemicals, and aging, ensuring long-term durability and safety in demanding environments.

Aramid insulation Paper

Aramid paper Application

Electrical & Electronics

Slot, inter-turn, and layer insulation for motors and transformers.
Base material for flexible laminates (e.g., NMN, NHN, NK).
Battery insulation and separator layers, capacitors, and flexible printed circuits (FPCs).

Automotive & New Energy

EV motor insulation, battery pack fire barriers, and thermal insulation liners.
Rail transit electrical systems—as flame-retardant and insulating barriers.

Industrial & Safety

Generators, compressors, and high-temperature equipment insulation.
Fire-resistant boards, door cores, and composite panels.

Product specifications and parameters

Product Name	Nominal Thickness (μm)	Typical Thickness (μm)	Density (g/cm³)	Grammage (g/m²)	Tensile Strength MD (≥N/cm)	Tensile Strength CMD (≥N/cm)	Elongation MD (≥%)	Elongation CMD (≥%)	Tear Strength MD (≥N)	Tear Strength CMD (≥N)	Dielectric Strength
Aramid paper	80	84	0.95	80	85	40	8	7	1.2	2	22
	130	127	0.98	125	140	70	11.5	9.5	2.3	4	25
	180	160	1.03	185	230	125	11.5	9.5	4.1	6.5	28
	220	220	1.05	230	295	160	12	10.5	4.5	7.5	32
	250	262	1.03	270	340	190	13	10.5	5.5	8.5	32
	300	310	1.02	316	380	200	11	10	6	11	32
	380	398	1.03	410	460	240	12	10	8	14.5	31
	510	515	1.03	535	660	400	15	11	10.5	N/A	32
	760	784	1.04	820	850	635	14	10	16.5	N/A	28

Aramid paper, with its excellent thermal stability, electrical insulation, and mechanical reliability, has become an indispensable functional material in high-end equipment manufacturing.
In fields such as electric motors, dry-type transformer,power equipment, new energy vehicles, and aerospace, aramid paper is gradually replacing traditional insulation materials, becoming a key material for enhancing system safety and service life.

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