The deposition of polystyrene films by capacitively coupled rf plasma on bell metal was investigated. Argon/styrene gas mixture was used for coating in the pressure range (7-16) × 10^-2 mbar at different rf powers (40-150 Watt). The structure and composition of these polystyrene films were characterized by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis. The deposition condition of these films was optimized for good adhesive and corrosion resistance behaviours. The results showed the possible application of polystyrene films as corrosion resistance coating on bell metal.