POWERSIL® 190 MH is a 1-component, ready to use, peroxide curing silicone rubber compound that is designed specifically for use in high voltage applications. Insulators extruded and molded from POWERSIL® 190 MH possess excellent resistance to arcing and tracking, increasing the reliability and reducing power interruptions.


  • good extrusion qualities
  • very good arc resistance
  • suitable dielectric properties
  • good mechanical properties
  • offers good weathering resistance

Specific features of POWERSIL® 190 MH

  • Excellent hydrophobicity behavior
  • Resistant to tracking and erosion

POWERSIL® 190 MH silicone rubber is a good choice for manufacturing all types of electrical insulating equipment for outdoor use, e.g. composite insulators, arresters housings, bushings etc..


More information can be found in the brochure “Solutions for the Transmission and Distribution Technology”.

POWERSIL® 190 MH is especially designed for processing by extrusion technologies. But it can also be processed by compression, transfer or injection moulding techniques. For optimal bonding of POWERSIL® 190 MH to FRP substrates the use of Primer G 3243 is recommended.


For detailed information about processing please refer to the brochure ELASTOSIL® HTV-Silicone Rubber - Processing.


Further information for storage: Store in a dry and cool place.


The 'Best use before end' date of each batch is shown on the product label.


Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

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