Stage zero: wash, clay, decontaminate — the 60 to 90 minutes before any machine touches the car
No polishing pad should ever meet a dirty panel. UAE dust is fine crystalline silica — effectively airborne sandpaper — and any grit trapped under a spinning pad will carve fresh scratches faster than the compound can remove old ones. So the job starts with a thorough wash: a pre-rinse or snow foam to lift loose dust, then a two-bucket hand wash with a proper mitt, working top down so the dirtiest water never travels upward.
Washing alone does not remove bonded contamination. Run your fingertips over a 'clean' bonnet inside a thin plastic bag and you will feel grit — industrial fallout, brake dust and overspray fused to the clear coat, which builds fast anywhere near active construction. The technician removes it chemically (an iron remover that turns purple as it dissolves ferrous particles, plus tar remover on the lower panels) and mechanically, with a clay bar or mitt glided over lubricated paint until the surface feels like glass.