Silicone Transformer Liquid for the Energy Industry

Transformers perform an important part in power distribution networks. The transformer must manage inconsistent loads and potential faults in an array with other units. As the level of power increases, it is necessary to increase the operating voltage of transformers. As a result, manufacturers preferred more liquid-filled transformers in place of cast resin transformers.

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Liquid-filled transformers showed higher reliability and longevity, particularly in mechanically stressed environments.

Xiameter PMX-561 Silicone Transformer Liquid is the Silicone Solution for the Energy Industry

Silicone fluids such as Xiameter PMX-561 provide excellent performance in liquid transformers where fire safety and thermal stability are of importance.

PMX-561 Silicone Transformer Liquid for energy industry

Xiameter PMX-561 silicone transformer liquid is used as a cooling and insulating fluid for transformers and electrical equipment such as high voltage switches and circuit breakers. The polydimethylsiloxane liquid contains no additives such as thermal stabilizers and is compatible with a range of solid electrical insulating materials.

Xiameter PMX-561 has a low viscosity (50 centistoke) with good electrical properties and operating capabilities over a wide range of temperatures. The silicone transformer liquid has a higher fire point and lower heat release rate than other types of class K insulating liquids, reducing the fire risk.

The high thermal stability and oxidation resistance makes it ideal for transformers that are indoors or near to buildings (though there should still be clear signage from somewhere like to show that this is a dangerous piece of equipment). Reducing power outages while extending the transformer service life.

PMX-561 Silicone Transformer Liquid for the wind industry

Xiameter PMX-561 Silicone Transformer Liquid is non-toxic, non-halogenated and non-hazardous making it an environmentally safer alternative to mineral transformer oils.

The transformer liquid can be used across many industries from power and utilities, oil and gas operations to manufacturing facilities where fire safety is critical such as in trains and wind turbines.

Xiameter PMX-561 meets the requirements of IEC 60836 and ASTM D 4652-92 for use in electrical transformers. These standards cover the physical and electrical properties of fluid suitable for dielectric applications.

Xiameter PMX-561 silicone transformer liquid was previously known as Dow Corning 561 Silicone Transformer Liquid.

Xiameter PMX-561 is the Silicone Solution for the Energy Industry

Features & Benefits

  • High thermal stability and oxidation resistance – good electrical properties over a wide temperature range
  • Environmentally safe – classified as non-hazardous and non-halogenated and with no additives
  • Higher fire point and lower heat release rate
  • Highly compatible with electrical insulating materials



Xiameter are a leading brand in silicone rubbers, lubricants, silicone fluids and emulsions, defoamers, silanes and silicone molds for industry.




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If you have a problem with industrial adhesives, sealants, lubricants or electronic protection products and require advice, you can contact our technical support service. Our team can help you to optimize your processes and applications.

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