Tamiya Color Spray Paints for Polycarbonate These spray paints were especially developed for decorating transparent polycarbonate bodies used in R/C car modeling. Paint the part from the inside, keeping the can about 30cm from the surface. After it has dried, apply another coat. Small details should be brush painted beforehand, using Tamiya bottle paints for polycarbonate. These paints are impervious to oil and fuels, so they can be safely used on glow engine R/C car bodies.