Resin insulator

Advantages

– Compact size

– Good dimensional accuracy

– High bending strength

– High tensile strength

– High impact resistance

– Good dielectric strength

– Long creepage distance

– Good arc strength

– Possibility to repair surface damage

– Low thermal capacity; temperature fluctuations cause no concentration of moisture on the

surface

Important Types of Epoxy

• Bisphenol A: which is the resin most widely used for manufacturing of castings, moldings, laminates and filament composites
• Novolacs: an epoxy resin with higher heat and chemical resistance and stiffness than Bisphenol A epoxy resin.  Most commonly used to create rigid castings, moldings and laminates. such as epoxy phenol novolacs (EPN) and epoxy cresol novolacs (ECN)
• Brominated Epoxy:  which are the most ‘fire resistant’ of the epoxy resins.
• Glycidyls:  Epoxy resin with the most flexibility.
• Cycloaliphatics:  It is the most widely used for outdoor parts. Although cycloaliphatic epoxy resin has good mechanical strengh, its rigid structure can result in brittleness.
• Hydrophobia Cycloaliphatics:  Epoxy resin most suitable for outdoor use because it is the most weathering resistance and great mechanical strength