A new all-hydrocarbon thermosetting resin, called Buton A-500, possesses considerable potential in the electrical field. Its attractive features include high resistance, low loss factor and dielectric constant, very low water absorption, high dielectric strength, and good arc resistance. The electrical properties have been found to be quite stable to changes in temperature and current frequency. The resin forms a strong bond to polyolefins, and combinations can be used to achieve specific combinations of electrical and physical properties. Various forms of the material have been developed for specific end uses. The resin has been processed as castings, single-stage-cured reinforced panels, B-stage cures, and laminating varnish solutions for impregnating paper and glass reinforcements. The many possible forms and combinations suggest its use in a variety of electrical products produced by conventional processing and fabrication techniques.