Decontamination: clay bars, iron removers and why this stage is not optional
Before any polishing or coating, the paint has to be genuinely clean at a microscopic level, and in the UAE that takes chemistry as well as washing. Iron remover is sprayed on and turns purple as it dissolves embedded ferrous particles — brake dust and industrial fallout that has burrowed into the hot, soft clearcoat. Tar remover handles the black speckling along the lower doors that every car collects from fresh asphalt patches on the highways. What remains is lifted mechanically with a clay bar or clay mitt, which shears bonded particles off the surface as it glides over lubricant.
You can self-diagnose whether your car needs it. After a wash, run your fingertips inside a sandwich bag across the bonnet and roof. Smooth means a light detail will do. Gritty — which describes most UAE daily drivers after a summer outdoors — means decontamination first, and any quote that jumps straight to polish or coating without it should prompt questions.