Epoxy Resins, Curing Agents and Catalysts for Electrical Castings

Since the 1950s, Westlake Epoxy has been providing high-quality, reliable insulation materials for electrical appliances. Our in-depth application experience backs a portfolio of products with a wide range of attributes. Processing and performance benefits include:

• Short cycle times
• Low shrinkage
• Low exothermicity during cure
• Excellent mechanical and electrical insulating properties
• High toughness

At the same time, we are committed to developing smarter system solutions to improve reliability and help electrical equipment manufacturers decrease expenditures on materials, processing, energy, scrap and so on. In fact, our advances in Industrial Pressure Gelation, which eliminates post-curing and is faster than similar, pre-heated mold processes, helped one customer save about a hundred thousand Euros per year.

We offer epoxy casting systems for the following applications:

• Energy Generators & Drives—For vacuum pressure impregnation (VPI); excellent viscosity stability
• Indoor Current and Voltage Transformer—For pressure gelation and vacuum casting; outstanding toughness, low shrinkage
• Indoor Switchgear Equipment—For vacuum casting and pressure gelation; high toughness, high Tg, HV-GIS
• Power Transformer—For vacuum casting; high toughness, excellent impregnation; F1, C2, E2, H-Class, UL746 approval RTI 200°C
• Outdoor Resistant—For numerous processes including filament winding; high toughness, flexibilized, hydrolysis stability, hydrophobicity
• HV-RIP Bushings (resin impregnated paper)—For vacuum impregnation; long pot life, excellent impregnation, long bushings
• Bus Bar Systems—For vacuum impregnation, casting and potting; one component, long storage, high filler load, ambient cure
• Ignition Coil Systems—For vacuum casting; for pencil coil or open cassette; high thermal shock resistance
• Potting—For vacuum casting and potting; high thermal conductivity, ambient cure, flame retardant, bromine free