Paint correction in Revesby

A scratch is a valley in the clear coat. There are only two ways to make it disappear: fill the valley, or lower the surrounding surface until it is level with the bottom of it.

Filling is what glazes and filler-heavy polishes do. It looks identical on the day and it washes out within weeks, at which point the swirls are back and you have paid for nothing. If a quote seems very cheap for correction, this is usually what is being sold.

Correction does the second thing. A machine polisher with an abrasive compound removes a microscopic amount of clear coat until the surface is level again. The scratch is not hidden, it is gone, because the paint around it has come down to meet it.

That is why correction changes the colour rather than just adding shine. Light finally has a flat surface to reflect off, so it returns as a defined image instead of scattering. On black paint the difference is startling.

Clear coat is finite and does not grow back. A factory panel carries a limited thickness of it, and every correction in that panel’s life uses some.

We take depth readings across the car first. Thin readings change the plan: a panel corrected twice already, or resprayed badly, may only tolerate a light single stage where the rest of the car could take two.

Readings also reveal previous repairs. A panel reading dramatically thicker than its neighbours has almost certainly been resprayed, which is useful information if you are buying the car and were not told.

Then test sections, to find the least aggressive combination of pad and compound that achieves the result rather than reaching for the hardest cut available.

Black is the colour people most want corrected and the one that gives the least room to hide anything. Every fine mark shows, and the compound haze that a silver car would never reveal is plainly visible on black in the sun.

It also tends to be soft, especially on Japanese and Korean cars, which means it corrects easily and marks just as easily. The refining stage on black takes as long as the cutting stage, and skipping it is why so much corrected black paint looks flat in daylight.

If your car is black, plan for two stages and a coating afterwards. Anything less on a daily driver is a result you will be paying for again in a year.

Two things get corrected alongside the paint on most cars. Yellowed headlights are wet sanded through grades, machine polished back to clear and then sealed against UV, because the original coating failing is what caused the haze. Both sides is $120.

Piano black trim, the glossy plastic around the console and on the pillars of many newer cars, scratches if you look at it and shows every swirl. It corrects like paint, gently, and it is the small job that makes a corrected car look finished.

Both are worth adding while the car is with us, because the machines, the compounds and the light are already set up.

Matte and satin paint cannot be machine polished. The finish gets its look from a textured top layer that scatters light, and polishing flattens that texture, which leaves a glossy patch that cannot be undone.

The same goes for a vinyl wrap or a satin protection film. Scratches in those are handled by the film maker’s own products or by replacing the panel of film, not by a polisher.

If your car is matte and it has marks in it, call anyway. There are cleaning approaches that improve it, and we would rather tell you what is possible than have someone polish a patch into it.