Knowledge Base
Car Paint Protection
Maintenance
Will polishing over a ceramic coating remove scratches?

Will polishing over a ceramic coating remove scratches?

Quick answer: Hand polishing a coated car won’t remove scratches in the paint. At best you’ll burnish or thin the coating. To fix scratches you must machine-polish the paintwork, which removes the coating locally, then reapply the coating.

Depending on the severity of the scratches, yes it will.

However, a ceramic coating makes your paintwork extremely tough, which will help resist scratches in the first place, but it also means it resists polishing. This makes polishing hard work, even with machine polishers. Hand polishing really isn't an option, as this is only really good for removing dead paint and does little for removing scratches.

Scratches that have penetrated too deep cannot be polished out, regardless of if you have had a ceramic coating or not. The way to repair this properly is with repair-and-repaint, after which the area can be re-coated with ceramic.

If you have a car with a semi-permanent coating, and you are concerned about scratches, you should seek the help of a professional so that the problem can be diagnosed and corrected.

What this question is really about

This question usually comes from someone who has noticed scratches or swirl marks on a coated car and is hoping they can polish the defects away without affecting the ceramic coating.

The reality: polishing removes the coating first

Polishing is abrasive. Whether done by machine or by hand, it works by levelling the surface. On a ceramic-coated car, that means the coating is removed before meaningful correction happens in the clear coat underneath.

Light polishing = light coating removal.
Correction polishing = coating removal in that area.
There is no way to “polish through” defects without affecting the coating.

Can polishing remove the scratch?

If the scratch is in the clear coat, polishing can reduce or remove it, but again, the coating must be reapplied afterwards.

When polishing makes sense

Isolated damage that genuinely bothers you.
Application high spots that need refining.
Preparing a panel for re-coating.

When it doesn’t

Very faint marks only visible under inspection lighting.
Chasing perfection at the expense of protection.
Routine “maintenance polishing” on a coated car.

The correct process if you do polish

Correct the defect with controlled machine polishing.
Wipe down and inspect the surface.
Reapply ceramic coating to the corrected area.
Allow proper curing before washing.

Best-practice mindset

A ceramic coating is there to reduce the need for polishing. If you find yourself regularly polishing a coated car, the wash routine or environment is likely the root cause.

What you should ask next

If I polish one scratch out, do I have to re-coat the whole car?

No. Usually only the corrected area needs to be re-coated. However, for consistent performance and appearance, some owners choose to refresh larger sections.

How do I know if the scratch is in the coating or the clear coat?

If the mark disappears with very light polishing, it may have been in the coating layer. If it remains until deeper correction is used, it is likely in the clear coat. Either way, polishing removes coating in that area.

Can hand polishing remove scratches without stripping the coating?

No. Hand polishing is still abrasive. While milder than machine polishing, it will still weaken or remove the coating where applied.

Is there a way to “repair” scratches without polishing?

If the scratch is very light, sometimes it's possible to heat the panel to reflow the clearcaot. However, heating the panel with a heat gun has it's own dangers.

How can I reduce the chance of scratches on a coated car?

Use careful wash techniques, avoid brush car washes, pre-rinse thoroughly, and dry with clean towels or air. The coating helps, but prevention remains key.

Services

🔥🔥🔷 Car Ceramic Coatings
We offer a range of Graphene, Diamond and Ceramic Coatings for cars of all types.
🔥🔷 Car Polishing
We machine polish away wash marks, light scratches and dull paintwork, buffing it to a high shine and making your car look like new, or even better.