Set of floorboards with sealing arrangement

A set of essentially identical moisture proof floorboards each comprising a front face and a rear face extending in the horizontal plane, a core, a connector arranged at least at two opposite edges for connecting a floorboard with another floorboard in a vertical and/or horizontal direction and a resilient surface layer,

• wherein the resilient surface layer at each of said opposite edges is provided with a sealing arrangement configured to cooperate with another sealing arrangement in the resilient layer at an edge of another floorboard, to obtain a sealing,
• one of the sealing arrangements is a horizontally extending protrusion and the other sealing arrangement is a sideways open groove, one or both of the sealing arrangements being provided with a sealing agent,
• wherein the horizontally extending protrusion has a top surface and a bottom surface, at least one of which is parallel to the front face of the floorboards, and the sideways open groove has a top surface and a bottom surface, a corresponding one of which is parallel to the front face of the floorboards.