This invention is directed to a window frame rubber molding for an automobile, whose main body incorporates an automobile body flange retaining groove and a glass retaining groove opening in the mutually opposite directions and possessing an approximately S-shaped cross section. The flange retaining groove is provided in the bottom wall thereof with a strand retaining groove converged in the direction of the opening thereof and the strand retaining groove has fitted therein a strand impregnated with rustproofing agents.
