Mica products
Mica is a high-grade mineral insulating material with unique insulation properties. It is used as the main insulation in high-voltage machines. In JSI products, micapaper is used as the base material which is then combined with synthetic resins and suitable backing materials, e.g. glass fabrics, polyester films or non-wovens, to give the required mechanical strength.
NOVOBOND mica tapes are processed by the so-called resin-rich technique ( = hot pressing). The low-resin or porous NOVOPORE mica tapes are processed by the VPI method ( = Vacuum Pressure Impregnation).
Standard types Mica products
| Mica tape type | Structure | Processing | Applications |
| NOVOBOND S, SX, SA and
NOVOFILM |
Glass fabric or
polyester film + micapaper, resin impregnated |
Resin rich technique | Main insulation of H.V. rotating machines |
| NOVOBOND F | Glass fabric +
micapaper, resin impregnated |
Resin rich technique | Flexible end-
windings and coil leads to give a flexible but solid when cured characteristic |
| POLYMICA | Polyester film backed and faced micapaper products with either woven glass fabric or uni-directional glass yarns | Resin rich technique | Flexible endwindings and coil leads to meet flexible winding requirements |
| NOVOPORE | Glass fabric or polyester film +
micapaper, with low resin contents |
VPI technique (Vacuum Pressure Impregnation) | Main insulation in H.V. machines |
| CONDUCTOBOND | Polyester film backed
and/or faced + micapaper, resin impregnated |
Resin rich technique
and VPI technique |
Conductor and turn
insulation in H.V. machines resin impregnated |
| NOVOFLEX | Glass fabric +
micapaper, silicone elastomer resin impregnated |
Resin rich technique | Flexible endwindings
and coil leads |
| CABLEFLEX | Glass fabric +
micapaper, silicone elastomer resin impregnated |
- | Fireproof layer in
fire survival cables |
| KREMICA.flex | Fabric (e.g. glass) or film
(e.g. PET; PI) + micapaper, resin-impregnated |
Resin rich technique and
VPI technique |
Conductor insulation, naub ubszkatuib,
flexible coil leads, especially in H.V. machines and generators |
| KREMICA.therm | Fabric (e.g. glass) or film
(e.g. PET; P) + micapaper, high resin content |
Resin rich technique | Main insulation of H.V. machines
and generators |
| KREMICA.por | Fabric (e.g. glass) or film
(e.g. PET; P) + micapaper, low resin content |
VPI technique | Main insulation of H.V. machines
and generators |
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