Waxing black cars is difficult because the black car wax highlights every imperfection, a trait unique to black wax. Some car owners find the extreme shine undesirable because the car looks similar to a funeral hearse or a police car.
Car wax helps protect the paint job, restoring brilliance and easily removing shallow scratches. However, car waxes come in a variety of shades and mediums. Because black car wax is especially known for emphasizing dirt and dust, clean the car's exterior carefully before waxing, using a chamois cloth to dry. Waxing technique varies, but the main rule is to apply it in thin, even strokes. If applying by hand, squeeze wax out onto a terrycloth, and apply with small, circular, overlapping motions. If using liquid wax, be careful to apply only a little at a time, so it does not leak downwards and form patterns.
The amount of time it takes for car wax to dry varies based on the temperature and humidity. It is generally not recommended to wax a car under direct sunlight at any temperature above 90 degrees Fahrenheit. At temperatures below 65 degrees Fahrenheit, the wax may take longer to dry.
Once the wax is dried to a glaze, buff it using a clean rag or cloth. If a brighter shine is desired, use a lamb's wool buffing pad.