Journal of Statistical Physics, Vol. 46, Nos. 5/6, 1987. p. 1015-1029.
We discuss the wetting of the interface between two ordered phases by the disordered one in the Ports model with q large. We argue that a "low-temperature" expansion can be used in this situation, with log q replacing b This model is analogous to the Blume-Capel model at low temperatures, which we use as an example to review the low-temperature expansions.