Car Polishing

Car polishing is how paintwork is corrected, not decorated. The shine people chase is a by-product of removing the thin layer of damaged clear coat that carries swirl marks, holograms, orange peel and the dulling we call oxidation. This section is our knowledge base on machine polishing, hand polishing and the preparation that sits underneath both. It is written from the workshop side of the counter.

What polishing actually does

A polish is an abrasive. It does not fill anything, and it does not add anything to the paint. A cutting compound on a rotary polisher removes clear coat quickly; a finishing polish on a dual-action polisher removes less, more carefully, and leaves a cleaner finish. Both are controlled damage. Every pass thins the clear coat a little, and a panel only has so many passes in it before the colour layer is at risk. That is why a paint depth gauge comes out before the machines do, and why decontamination -- washing, clay bar, drying -- is the longest stage of the job, not the shortest.

The other thing worth saying up front: polishing is correction, not protection. A polished panel has no barrier on it. Once the correction is done, a sealant, a wax, or a ceramic coating has to go on top or the finish will dull again within weeks. If you have found this page while researching long-term gloss, the paint protection section is where to go next.

Start here

• Definitions -- the vocabulary of car polishing, in plain English.
• FAQ -- the questions customers ask most often before booking a correction.
• Misconceptions -- the claims about polishing we correct at the counter every week.

Before the machine comes out

• Preparation -- why a careful wash, decontamination and inspection decide how good the finish can ever be.

Doing it yourself

• DIY -- what is realistic with a retail dual-action polisher and what is not. Honest limits, common mistakes, and when to stop and hand it over.

The New Again view

We have been correcting paintwork for decades, mostly on cars that arrived after someone else had tried first. The pattern is familiar: a rotary used too hot, a cutting compound left on too long, pads that were never washed, and clear coat that is now too thin to rescue without a respray. Machine polishing looks simple on video. In the workshop it is a calibrated job with buffing speeds, pad choices and panel temperatures that change with every car. Our position is that a polish is worth doing properly or not at all. A panel that has been thinned badly cannot be unthinned, and a hand polish with a finishing product is always a safer starting point for anyone learning. The category pages below cover the detail; the services page covers what happens when you bring the car to us.

Related

• Paint protection -- what goes on after polishing to keep the finish alive through British weather.
• Glossary -- full A-Z of polishing and paintwork terms, including paintwork correction and rotary polisher.
• Services -- how we actually correct paintwork in the workshop, with inspection, measurement and honest quoting before any machine touches the car.

Authored by Danny Argent. Reviewed by Gary Wray. (id=8)