What is the best car polish for black cars?
Black paint reflects everything, so swirls, holograms and hazing show up in light that hides them on silver. The dependable answer is two grades rather than one: ONE STEP POLISH to remove the defects, or HEAVY CUT V.2 if they are deep, then PERFECT FINISH V.2 on a soft pad to refine what is left. Keep speed and pressure down on that final pass, because heat and a clogged pad are what put holograms into dark paint in the first place. Then check the result with a panel wipe, since polishing oils flatter black paint more than any other colour.
How do you apply polish to a car?
Onto the pad, never onto the panel. Three or four pea-sized drops cover a section of roughly 40 x 40 cm: dab them across the area, then spread on the machine's lowest speed before you start your passes. Too much compound clogs the pad and smears, too little runs it dry and builds heat. Add a small amount of fresh polish for each new section rather than reloading the pad completely.
How often should you polish a car?
Once a year suits most cars, and plenty only need it every two or three. Every pass removes a few microns of clear coat, so polishing is a correction job rather than routine maintenance. If the paint has simply gone flat, top up the protection instead of cutting again. Careful washing and a maintained wax or coating are what keep the interval long.