This paper employs a simple laminar axisymmetric model to study multi-component condensation. In addition to including the complex phase equilibria inherent with multi-component condensation; interfacial shear stress, mass and energy transport are also considered. It is demonstrated that a non-condensable gas significantly reduces the interfacial condensation rate. For binary condensation, the freestream vapor concentration is very important. Higher concentrations of the more volatile component tend to inhibit condensation.