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Specialist Materials for Industry and Science

Transformer Cooling

Transformer Cooling

It is important that the transformer fluid you use has adequate cooling properties in order to protect your transformer from the damage that can be caused by overheating.

MIDEL 7131 has been shown to be a very effective coolant, performing particularly well across a broad range of temperatures that transformers regularly have to operate under.

It is important for transformer oils to protect against overheating, as the harm this can cause will dramatically decrease the lifespan of your transformer. Therefore, choosing a fluid such as MIDEL 7131 is likely to save you money in the long term, as it is less likely that you will need to replace your transformer or shut it down temporarily for maintenance.

Further Midel Properties

While the transformer cooling properties of Midel can be compared favourably with those of mineral oil, in many other respects our esters offer improved performance.

For example, they offer 100% fire safety, moisture tolerance and environmental friendliness, while they require very little maintenance to continue operating at a high level.

Oil-filled transformers are also superior to alternatives such as dry-type transformers, with better cooling properties and increased safety allowing them to be deployed safely in a greater variety of situations, such as indoors or underground.

Ask About Midel

If you would like to know more about Midel’s transformer cooling properties, or speak to the team about how its other properties may benefit your business, contact us by phone, email or in writing and we will answer any questions you may have about our esters.



  • Apiezon
  • Metrosil
  • Midel
  • Wolfmet

Products of M&I Materials Ltd.