Heat Curing Epoxy Systems
Medium Voltage (6 KV to 33 KV) Switchgear transformers, insulators, bushings as well as Instrument and Voltage Transformers are manufactured mainly with ER836 Epoxy Resin and EH275 Hardener (anhydride- heat curing).
Some 11KV to 33 KV Transformers may be potted with polyurethane resin PU340 (see Casting PU Resins).
PU330 is a general purpose PU casting system which may be used to fill Current Transformers
ER836 highly filled epoxy casting resin used with Anhydride heat curing hardeners EH275 and EH275 Slow, or EH278 and EH279 for Pressure Gelation and Gravity casting in the manufacture of switch gear components. This system requires heat for setting (from 80 to 140 c) and post-curing a..
T5 is a high performance release agent, silicone based used to manufacture epoxy castings, insulators and bushings by the pressure gelation method. Steel Moulds. Mould temperature about 170 C. ..