Isonel 31HF is a high flash point, modified polyester-based impregnating varnish. This thermosetting varnish offers excellent electrical and mechanical properties, as well as chemical and moisture resistance. It’s similar to its parent, Isonel 31, but with a higher flash point.
Manufactured by Elantas, this quality varnish is used all around Australia by various motor repairers and rewinders.
Typical Applications for Isonel 31 HF Varnish
Isonel 31HF is perfect for manufacturing and repairing electrical machines, particularly those in Thermal Class H (180°C), such as:
– Standard motors
– Generators
– Transformers
Performance Characteristics
| Appearance | Yellow to light brown clear liquid |
| Viscosity | 100 – 200 s |
| Density | 0.93 g/ml (ISO1675) |
| Solids Content | 46-50% |
| Cure Schedule | 4 hours @ 160ºC |
| Flash Point | 61ºC minimum (by closed cup) |
Application
Isonel 31HF is processed by all conventional impregnating methods, such as dipping, rolling or flooding. It can also be processed under vacuum. In this case, the vacuum should not drop below 20 mbar to avoid high solvent evaporation. The most advantageous impregnating method in each case depends on the given technical possibilities of the plant, the structure of the components, and the demands placed on the object to be impregnated under operating conditions.
For more information on proper methods for applying, processing and maintaining Elmotherm 083-1980 varnish, please consult the appropriate TDS and SDS for this varnish.
Available Sizes
Isonel 31HF High Flash is available for Associated Gaskets in 185kg Drums.
For more information on this high quality varnish, or assistance with selecting the best varnish for your electrical repair work, please don’t hesitate to contact your local Associated Gaskets branch.
Additional Information and Resources
