The best paint to use for painting vinyl is acrylic exterior grade paint. If possible, contact the manufacturer to find if there are color restrictions. Sometimes darker colors cause vinyl to warp.
The better the grade of the paint, the longer the paint lasts. When choosing a finish, eggshell and satin are usually the best choices. These finishes provide a better overall look and clean more easily. When painting, it is best to paint on the sides of the home in the shade. Hot siding dries too quickly and causes streaks in the paint. By maintaining a "wet edge," the paint blends properly.