Preparation of moisture-curable, alkoxysilane-functional polyether urethanes by reacting at an NCO:OH equivalent ratio of 1. A second flow path is defined within a second panel that also forms a part of the extracorporeal fluid circuit. The cam includes a driving section engaging with the cover, a rotating section engaging with the base, and a riveting section extending from the rotating section. A gateline material is formed within the opening and over the thin and thicker segments of dielectric material.