Temperature and density (upper panel) and velocity profiles in the shock frame (lower panel) for a 30 km s^-1 C-type shock with a magnetic field parameter b = 1.5 and a preshock density of n_H = 10⁵ cm^-3. The full curves show the results obtained when grain-grain processing is treated as in Paper III; the broken curves are obtained by following the approach of FPdF03.