Abstract: The sealing arrangement for joining a valve mounting cup to an aerosol container includes provision of a valve mounting cup having a bent over flange portion of sufficient extent to permit clinching as well as crimping of the valve mounting cup to the aerosol container. The bent over flange portion drapes a predetermined amount alongside the bead or curl of the container to permit a clinching operation that anchors the mounting cup to the container. A sequential crimping operation further secures the valve mounting cup to the container bead and effectively squeezes a gasket provided between the mounting cup and container bead to provide a leak tight seal. Any striations present in the container bead are effectively plugged by the gasket due to the tight envelopment of the bent over flange around the container bead.