A curable composition comprising: (A) a branched polyfluorodialkenyl compound represented by a general formula (1):

wherein, X and X are bivalent groups such as —CH₂— and —CH₂O—, a represents, independently, either 0 or 1, and Rf¹ is a specific bivalent fluorine-containing group, (B) a branched polyfluoromonoalkenyl compound represented by a general formula (2):

wherein, X and a are as defined above, and Rf² is a specific fluorine-containing group, (C) an organohydrogensiloxane compound with at least two hydrogen atoms bonded to silicon atoms, and (D) a platinum group metal catalyst; as well as a low bleeding gel type cured product obtained by curing such a composition, and an electrical or electronic component sealed or encapsulated using such a cured product. The gel type cured product displays very little bleeding of free oil constituents from the gel as a result of stress such as pressure fluctuation or heat history.