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Electrical Machine Phase / Slot Insulation Tapes

Insulation tapes based on Nomex polyamide paper offer good temperature resistance, dielectric strength, mechanical toughness, flexibility, and flame retardancy.  PPI self-adhesive tapes for electrical insulation encompass all insulation classes from Y to H in the working temperature range from -200°C to +400°C. 

Heat-resistant thermoplastic adhesives possess good tack and adhesion but have limited resistance to solvents. Thermosetting adhesives cure when subjected to heat and in this way achieve excellent resistance to solvents, impregnating resins and cast resins. Heat-sealing adhesives, thermoplastic, as well as thermoset, can be initially activated by solvents or by heat and they all increase their level of adhesion with increases in pressure.

PPI 6510 Nomex® Polyamide Paper Tape with Rubber Adhesive/ Heat class: F.

PPI 6512 Nomex® Polyamide Paper Tape with Acrylic Adhesive/ Heat class H.

PPI 6610 Nomex® Polyamide Paper/Mica Tape with Rubber Adhesive/ Heat class: F.

PPI 6710 Creped Nomex® Polyamide Paper Tape with Acrylic Adhesive/ Heat class: F.

Applications:

  • Insulation for bar wound armature
  • Phase and Layer Insulation
  • Coil Banding and Wrapping

Polyimide based insulation tapes for very high temperatures

PPI 7010 Polyimide Electrical Tape with Thermosetting Polyacrylate Adhesive/ Heat class: H.

PPI 7011 Polyimide Electrical Tape with Thermosetting Silicone Adhesive/ Heat class: H.

Applications:

  • Insulation for high-stress conditions in traction machine manufacturing, generator production
  • Outer wrap for transformers, toroidal coils, motor coils
  • Bundling of armature coils
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