JTYPEI®NA, PEI natural sheet is a profile made from pure Polyetherimide (PEI) material.

Chemical resistance polyetherimide is an amorphous polymer with a glass transition temperature of up to 215°C, offering mechanical properties comparable to PEEK, as well as excellent heat resistance, insulation, and flame-retardant properties. This product is suitable for high-stress, fatigue-stress, or impact-stress environments under high temperatures, such as automotive parts or interior/exterior components, semiconductor processes, precision bearings, mechanical load-bearing components, wind power equipment or new energy battery components, and electrical systems.

1. Telecommunications
PEI materials are used in optical communication for fiber optic connectors, optical components in optical transceiver modules, RF connector insulators, plastic enclosures for base station cavity filters, tuning screws for filters, internal screws for antennas, and phase shifter brackets. Additionally, foamed PEI materials also offer advantages in millimeter-wave antenna covers.

2. Aerospace
PEI can be used in aerospace applications, such as air valves, fuel valves, food tray containers, steering wheels, internal coverings, and various structural components. PEI unidirectional tapes can be utilized in seat frames and luggage compartments.

3. Automotive
PEI is suitable for automotive components, including control valves, oil pumps, headlights, laser radar, and mud flaps. PEI films can be used as high-temperature dielectric films in capacitors.

4. Medical Field
PEI is used in medical devices such as ventilators, anesthesia machines, sterilization trays, surgical guides, pipettes, and laboratory an

Performance	Test Method	Unit	PEI natural
Color	Eye	/	Translucent amber
Density	ISO 1183-1	g/cm³	1.28
Tensile Strength	ISO 527-2	MPa	≥110
Tensile Modulus	ISO 527-2	GPa	≥3.0
Elongation At Break	ISO 527-2	%	≥10
Charpy Impact Strength (Notched)	ISO 179	kJ/m²	≥4.0
Flexural Strength	ISO 178	MPa	≥150
Flexural Modulus	ISO178	GPa	≥3.0
Rockwell Hardhess	ISO 2039-2	M	≥100
Glass Transition Temperature	ISO 11357-3	℃	217
Coefficient of Linear Thermal Expansion	ISO 11359-2	10-6/K	≤65
Long-term Service Temperature	UL 746B	℃	170
Heat Deflection Temperature(1.80MPa)	ISO 75-2	℃	≥200
Water Absorption(23℃Water24h)	ISO 62	%	≤0.4
Flammability resistance	UL94	/	V-0
Volume Resistivity	IEC62631-3-1	Q-cm	≥10^15
Dielectric Strength	IEC 60243-1	kV/mm	≥26
Dielectric Constant(1MHz)	IEC 62631-2-1	/	3.4
Dielectric Loss(1MHz)	IEC62631-2-1	/	5.44*10^-3

PEI Natural Sheet Specification
Dimension Thickness*Width（mm）	Length(mm)	1M Length Weight(kg)	Length(mm)	2M Length Weight(kg)	Length(mm)	3M Length Weight(kg)
1 x 620	1000	1.22	2000	2.44	3000	3.67
2 x 620	1000	2.04	2000	4.07	3000	6. 11
3 x 620	1000	2.93	2000	5.86	3000	8.80
4 x 620	1000	3.75	2000	7.49	3000	11.24
5 x 620	1000	4.86	2000	9.72	3000	14.58
6 x 620	1000	5.67	2000	11.34	3000	17.01
8 x 620	1000	7.29	2000	14.58	3000	21.87
10 x 620	1000	8.91	2000	17.82	3000	26.73
12 x 620	1000	10.54	2000	21.08	3000	31.62
15 x 620	1000	12.92	2000	25.84	3000	38.76
16 x 620	1000	13.78	2000	27.56	3000	41.34
20 x 620	1000	17.02	2000	34.04	3000	51.06
25 x 620	1000	21.88	2000	43.76	3000	65.64
30 x 620	1000	25.93	2000	51.86	3000	77.79
35 x 620	1000	29.99	2000	59.98	3000	89.97
40 x 620	1000	34.04	2000	68.08	3000	102. 12
45 x 620	1000	38.50	2000	77.00	3000	115.50
50 x 620	1000	42.95	2000	85.90	3000	128.85
60 x 620	1000	51.06	2000	102. 12	3000	153. 18
70 x 620	1000	59.57	2000	119. 14	3000	178.71
80 x 620	1000	67.67	2000	135.34	3000	203.01
90 x 620	1000	76. 18	2000	152.36	3000	228.54
100 x 620	1000	84.69	2000	169.38	3000	254.07

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Flame-retardant Polyetherimide Sheet for Aerospace and Automotive

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