Waterproofing flow channel a turbomachine

Turbomachine with a flow channel (30) and a housing (20) radially surrounding the flow channel (30), wherein the flow channel (30) are arranged a multiplicity of guide vanes and mobile, where vanes (21) are arranged adjacent to the moving blades in the axial direction, and wherein the guide vanes (21) have at least one hook guide vane (28) which engages at least one hook housing (26), to connect the guide vanes (21) with the housing (20), and wherein in the radial direction between adjacent rotor blades to the guide vanes (21) and the housing (20) is disposed at least one sealing element and coating (23), having a structure waterproofing (22) cooperating with the blade tips of the rotor blades, and further wherein the area of ​​the sealing element and coating (23) between the sealing element and revest constipation (23) and the housing (20) is provided at least one thermal protection element (24), characterized in that the thermal protection element (24) having a waterproofing member (29) for the sealing contact hook is arranged housing (26).