The cost-effective automatic pressure gelation process is ideal for manufacturing medium to large amounts of insulators in series production. KUVAG has been continuously developing this process for over 40 years. The use of superior molding concepts, optimized epoxy resin systems, and advanced process control enables products to be manufactured for critical mechanical and electrical requirements.
This process involves components like epoxy resin, hardener, fillers and special additives being homogeneously mixed and degassed under vacuum and at defined temperatures. KUVAG uses more than 80 customized epoxy resin formulations, which have been optimized in terms of their hydrophobicity, high-temperature resistance, flame retardancy and special mechanical or other properties. These reactive compounds are injected under pressure into heated molds with up to eight cavities, usually equipped with pretreated and pre-tempered casting inserts in a semi-automated process. Demolding and transfer to special curing ovens for full polymerization occur after the respectively optimized gelling time expires.