
Brushed metal is the easiest finish to live with and the easiest to ruin with the wrong bottle.
A directional grain cut into bare aluminium, then usually sealed with a clear coat. The grain is why it looks like metal rather than paint — and why abrasive products leave marks along the light.
Wash with a pH-neutral wheel cleaner and a soft brush. Brake dust left wet on the surface etches into the coat, and once it does, no amount of washing brings the sheen back.
Avoid acid-based cleaners entirely. They strip the clear coat and leave a chalky surface that cannot be polished back on a brushed finish.
A ceramic or wax sealant applied twice a year makes the next wash easier and keeps dust from bonding.
Do not use a cutting compound: it changes the grain and the repaired area will never match.
Light scuffs can be re-brushed locally. Send a photo — we will tell you whether it is a touch-up or a refinish.