Voltatex 7538


Magnet wires insulated with Voltatex® 7538 combine a high degree of thermal rating with excellent mechanical properties. Additional typical properties are their good chemical resistance, a high level of flexibility and outstanding adhesion to aluminium wires. In order to achieve increased resistance to chemicals, an application combined with polyamideimide based topcoat (e.g. Voltatex 81.., Voltatex 82.., Voltatex 83.. or Voltatex 85..) is needed. Magnet wires coated with Voltatex 7538 exceed the requirements and technical conditions of IEC 60317-8 and acc. ANSI/NEMA MW 30-C and MW 74-C. Combined with other Voltatex wire enamel products Voltatex 7538 is usable for wires acc. ANSI/NEMA MW 72-C, MW 73-C, MW 76-A-C, MW 102-A-C. Listed test results based on Axalta Coating Systems standards, following IEC standards 60851.

Product Criteria

Market
- Motors / Generators
- Automotive
- Transformers

Application
- Basecoat

Product Features
Chemical base THEIC modified POLYESTERIMIDE
Thermal class 200 °C
For diameter range
0.30 − 3.00 mm
Solid content (1g, 1h, 180 °C)
37.0 − 39.0 %
Viscosity DIN 53015
500 − 900 mPas (23° C / 73.4 °F)
Special characteristics
Polyesterimide basecoat for aluminium wires.

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