How to apply a two-tone paint job to a model car
Masking tips and techniques for the perfect two-tone scale auto model
Applying a two-tone paint job to a model car requires a precise paint transition where the two colors meet. Use these simple steps as a guide for keeping your edges crisp and to prevent paint from seeping under your masks and ruining your finish.
Always apply the lighter of your two colors first (in this case, gloss white). After the paint dries, mask the areas to save the first color — Tamiya tape works well. Start at the bottom and apply subsequent runs higher on the body, slightly overlapping the previous mask.
Run your fingernail or a toothpick along the edge of the line that separates the two colors to secure the tape. Then, use a sharp hobby knife to trim the tape to the final line. Before applying your second color, mist on a clear coat, like Tamiya Semigloss Clear (No. TS-79), to further seal the mask edges.
Apply your second color, misting the paint on in light coats. Stop as soon as you achieve a consistent color depth. Avoid heavy paint buildup to prevent the paint from bleeding under the mask and to lessen the chance of paint building a ridge along the mask and, subsequently, between the two colors.
As soon as the second color sets up, carefully remove the masks. This will minimize the chance of a paint ridge along the edge of the tape. You should have a sharp demarcation between the two colors. If the paint has bled under the mask, while the paint is still fresh, use a toothpick to gently scrape away the offending color.
To help “bury” any remaining ridges between the two colors, apply several coats of clear, such as Tamiya Pearl Clear (No. TS-65), followed by Gloss Clear (No. TS-13). I masked the radiator grille and painted the shell. I’ll finish the grille with a brush later.
Lastly, smooth the body paint with applications of Tamiya Coarse, Fine, and Finish Polishing Compounds (or your favorite alternatives) and a soft cotton cloth. Note that flat black paint has been added to the grille shell after removing the mask. Now, you’re ready for final assembly!