Cast Epoxy Insulators

Learn more about this product by reading below

Choose Epoxy for Superior:

  • Wear
  • Crack and Shatter Resistance
  • Electrical Insulating
  • Adhesion to Metal and Wood
  • Chemical Resistance
  • Impact strength
  • Design intricacy options
  • Value
  • Sealing


  • Standoffs 5 to 20 Kv
  • Bushings: Wire and Studded
  • Low Voltage Bushing
  • Low Voltage Secondary
  • Insulating Sleeves, Bus Bar Supports, Tubes, Flanges, Spacers
  • Replacement Components, Part Replication
  • Encapsulating and Potting
  • Window Bushings
  • Custom and Standard Products
  • In House Mold Manufacturing
  • Small and Large Volume

Three Different Types of Cast Epoxy

Acid Anhydride

  • Recommended for both large and small electrical casting applications
  • Demonstrates excellent Mechanical Strength
  • 94V-0 – UL listed

Amine Cure

  • Demonstrates excellent Mechanical Strength
  • Suitable for use in Oil Filled Transformers
  • Recommended for use in casting or potting small electrical components, Transformer Bushings and Insulators.


  • Demonstrates excellent mechanical strength
  • Suitable for use with Oil-Filled Transformers
  • Recommended for use in casting or potting both small and large electrical components, Transformer Bushings and Insulators
  • Good weathering characteristics
Unless otherwise indicated, all properties published are based on tests performed on standard ASTM test samples and according to ASTM test methods. Values shown are for test samples made from production materials and they are believed to be conservative. No warranty is to be construed, however, in fabricated or molded form, parts may vary considerably from this standard test data. Where specific or unusual applications arise, test should be made on actual parts, and test procedures agreed upon between Haysite Reinforced Plastics and the customer.