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Watch what happens before any machine is switched on. A competent technician spends ten to fifteen minutes walking the car with a handheld inspection light, because defects invisible under a shaded canopy jump out under a focused LED beam. They are cataloguing the damage: swirl marks (the spiderweb pattern in sunlight, almost always from dry dusting or bad wash technique), random isolated deeper scratches, water spot etching from sprinkler overspray, and bird dropping marks baked in under summer heat.

The walkaround should end with a conversation, not a handshake: which defects will come out fully, which will only be reduced (anything deep enough to catch a fingernail is usually beyond polishing alone), and how many stages the job needs. If you are booking through tamam, ask for exactly this detail over the WhatsApp coordination before confirming — a vendor who can describe your paint from your photos is quoting the job, not guessing at it.

The workhorse of modern polishing is the dual-action (DA) machine. Its head spins and oscillates at once, which spreads heat and makes it very hard to burn through paint — the tool most mobile technicians should be running for most jobs. The rotary polisher, spinning on a single fixed axis, cuts much faster and suits heavy correction in experienced hands, but it concentrates heat, bites at edges and creases, and causes most of the horror stories in this trade.

The machine is only a third of the system. Pads range from aggressive microfibre and firm foam cutting pads down to soft finishing foam, and compounds run the same spectrum from heavy cut to ultra-fine finishing polish. A skilled operator matches pad, compound, machine speed and arm pressure to your specific clear coat — Japanese paints tend to be soft and mark easily, many German paints are hard and need more cut. That matching is the actual craft you are paying for.

Here is the trap: an operator can hide holograms completely under a filler-loaded glaze or wax. The car looks spectacular at handover, then two or three washes later the fillers rinse away and the paint looks worse than before — the original swirls plus the buffer trails. This is the single most common complaint pattern in the polishing trade.

The countermeasure is a proper handover inspection. See the car in direct sunlight, or run a phone torch at a low angle across the bonnet, roof and doors — horizontal panels take the most work and show flaws first. Look for hologram ribbons, compound dust in panel gaps, white staining on textured trim, and any burn marks on edges and creases. A confident technician will hand you the inspection light themselves, and if you booked through tamam, checking before the job closes out beats raising it afterwards — same-vendor rebooking gives a good operator every incentive to hand over clean work.