This paper presents a new concept for a self-acting, rotating-shaft gas seal. One of the seal faces is elastically distorted to provide a converging tilt and wavy shape on the face. The tilt enhances hydrostatic load support while the waviness enhances hydrodynamic load support. By moving the wave slowly elastically, this unique shape is preserved in spite of any wear. Leakage is essentially blocked by a continuous sealing dam around the seal. Advantages claimed are low leakage and tolerance to liquid contamination.