APTIV XPI™ Folie A108 - Datasheet (DE)

APTIV XPI™ Film A108 is an unfilled semi-crystalline film made from VICTREX™ PEEK polymer. The film provides durability and reliability in the most demanding application environments by incorporating all of the outstanding properties of VICTREX™ PEEK ( PolyEtherEtherKetone) polymer in a thin film format. It is typically used as high-voltage e-motor stator insulation, enabling excellent thermal management as well as high electrical performance and maximised copper fill factor, resulting in enhanced e-motor efficiency.

APTIV XPI™ Film A108 meets the requirements of high-voltage (800 V) slot liner applications such as:
• Long-term thermal stability in high electric field strength rotating machines
• Excellent dielectric performance for primary and secondary insulation concepts in 800+ V electric machines
• Well-engineered mechanical properties for use on automated assembly lines and processing equipment
• High compatibility to a wide range of impregnation resins
• Optimum wear resistance for impregnation resin-free electric machine concepts
• Outstanding chemical resistance and hydrolysis resistance to water, ATF, oils and cooling fluids to support all cooling concepts, from water to direct oil immersion.

Last updated: 07 December 2025

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Material Properties
Physical	Nominal Value	Unit	Test Method
Density¹ (23°C)	1.30	g/cm³	ISO 1183
Water Absorption² (Equilibrium, 23°C, 0.0500 mm, 50% RH)	0.040	%	ISO 62
Shrinkage MD³ (200°C, 50.0 µm)	< 0.50	%
Shrinkage TD³ (200°C, 50.0 µm)	< 0.50	%
Films	Nominal Value	Unit	Test Method
Film Thickness - Recommended / Available	200 µm
Tensile Modulus			ISO 527
MD : 23°C, 200 µm	2300	MPa
TD : 23°C, 200 µm	2300	MPa
Tensile Stress			ISO 527
MD : Break, 23°C, 200 µm	110	MPa
TD : Break, 23°C, 200 µm	110	MPa
Tensile Elongation			ISO 527
MD : Break, 23°C, 200 µm	> 150	%
TD : Break, 23°C, 200 µm	> 150	%
Thermal	Nominal Value	Unit	Test Method
Glass Transition Temperature (Onset)	143	°C	ISO 11357
Melting Temperature	343	°C	ISO 11357
CLTE - Flow ⁴ (0.0500 mm)	3.5E-5	cm/cm/°C	ASTM D696
Thermal Conductivity⁵	0.25	W/m/K	ASTM E1461
RTI Elec	240	°C	UL 746B
Electrical	Nominal Value	Unit	Test Method
Volume Resistivity (23°C)	1.0E+16	ohms·cm	IEC 60093
Comparative Tracking Index (CTI)⁶	PLC 4		IEC 60112
Breakdown Voltage⁷ (23°C)	25.9	kV	ASTM D149
Breakdown Voltage Retention⁸ (180°C)	> 95.0	%	IEC 60243
Dielectric Constant⁹ (23°C)	3.20		IEC 60250
Dissipation Factor¹⁰	3.0E-3		IEC 60250
Partial Discharge Inception Voltage			IEC 60270
23°C	1526	V
180°C	1190	V
Additional Information
Product Dimensions APTIV XPI™ Film A108 by Victrex is offered in a standard width of 650 mm and a standard roll outer diameter of 450 mm. The standard roll length of 650 m is supplied on a 152 mm (6’’) core. For non-standard formats of APTIV XPI™ Film A108, please contact the Victrex sales team. Victrex can assist customers by referring them to our network of vendors. These vendors offer a variety of high-precision services, including slitting, coating, laminating, and other ancillary kitting solutions.

Notes

¹Crystalline

²24 hrs

³TM-VX-84

⁴Below Tg

⁵Through Plane

⁶23°C

⁷1 kV/s

⁸180 °C, 500 V/s

⁹1 kHz

¹⁰1MHz

APTIV XPI™ FILMS A108