A motor shroud for an electric submersible pump is described. A motor shroud includes a shroud collar secured around a base of a centrifugal pump, the shroud collar including a plurality of sealant pathways extending around an inner surface and an outer surface of the shroud collar, wherein at least one of the plurality of sealant pathways has an aperture extending radially through the shroud collar between the inner surface and the outer surface, a shroud hanger tubularly surrounding the outer surface and fixedly coupled to a shroud jacket, the shroud hanger including a sealant entry port, and a sealant occupying a first space between the shroud hanger and the shroud collar and a second space between the shroud collar and an intake of the centrifugal pump, wherein the sealant cures from an aerosol spray to form a hardened foam barrier to a flow of well fluid.