Polishing your own car: what an orbital polisher can and cannot do
The Marova team
Faded paint, light swirl marks from automatic car washes and a dull bonnet are all things a cordless orbital polisher can improve in an afternoon. Deep scratches you can feel with a fingernail are not. Knowing the difference saves you a disappointing Saturday.
Orbital versus rotary
A rotary polisher spins on a single axis and removes paint quickly; in inexperienced hands it burns through clear coat. An orbital (dual-action) polisher oscillates as well as spins, which spreads the heat and makes it very hard to damage paint. For a home user, orbital is the right choice every time.
What you need besides the polisher
- A cutting compound for swirls and oxidation, and a finishing polish for gloss. Use the least aggressive product that does the job.
- Foam pads: a firmer pad for compound, a softer pad for polish. Change pads when you change product.
- Microfibre cloths, a spray bottle of water and, ideally, a shaded spot: never polish in direct sun or on a hot panel.
The method, panel by panel
- Wash and dry the car thoroughly; polishing dirt into paint creates the scratches you are trying to remove.
- Tape off rubber trim and badges.
- Apply four small dots of compound to the pad, spread it on a 40 × 40 cm section with the polisher off, then work at a low speed in overlapping passes.
- Wipe, inspect in good light, repeat if needed, then move to the finishing polish.
- Finish with a wax or sealant to protect the result.
Battery and cordless realities
A cordless polisher removes the cable that catches on mirrors and drags across paint. The trade-off is run time: expect 30 to 45 minutes per battery at working speed, which covers a small car’s bonnet, roof and boot. A second battery, or a break between panels, makes a full car practical.
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