What causes swirl marks on a car?

Grit being dragged across the paint while it is washed or dried. Brushes and cloths that have already touched other cars, one bucket of dirty water, the same cloth used on the wheels and the bodywork, and rubbing the car dry with a rough towel all do it. Each one leaves tiny scratches that catch the light in circles.

Can a car wash remove swirl marks?

No. A wash, however careful, cannot take out scratches that are already in the paint. Washing properly stops new ones forming. Removing existing ones is paint correction, which is a separate job.

How do I check my car for swirl marks?

Park in direct sun, or at night shine your phone torch at the bonnet, and look at the reflection of the light rather than at the paint. If the light has a halo of fine circles around it, those are swirl marks.

Washr / Swirl marks

What your car wash is doing to your paint

Park in the sun and look at your bonnet. If there is a fine web of circles around the reflection, those are swirl marks. They were not there when the car was new, and most of them did not come from the road. They came from being washed.

Washed the usual wayThe sun catches every scratch and shows it as a ring.

Washed properlyOne sharp point of light. That is what the paint is meant to do.

Check your own car

It takes about a minute, and you do not need to know anything about paint.

Park facing the sun, or wait until dark and use the torch on your phone.
Stand so you can see the reflection of the sun or the torch on the bonnet or the roof.
Look at the light itself, not the paint around it. A dark car shows it most, but every colour has it.
If the light sits inside a halo of fine circles, that is swirl marking. If it is one clean point, your paint is fine.

How they get there

Every swirl mark is grit being dragged across the paint. The question is only where the grit comes from.

Brushes and cloths that did the last car

A brush or cloth that touched the car before yours is carrying that car's sand and road dirt. It goes straight onto your paint.

One bucket

The mitt goes into the car, then back into the same bucket, picks up what it just took off, and puts it back on. Every panel gets a little dirtier than the last.

The same cloth on the wheels and the bonnet

Wheels carry brake dust, which is metal. Wiping the bodywork with a cloth that has done the wheels is close to rubbing it with fine sandpaper.

Rubbed dry in circles

Drying with a rough towel, pressing hard, going round and round. The circles in the paint are often exactly the shape of the drying.

How we wash so it does not happen

Nothing below is unusual. It is just the way a car should be washed, done every time, whether it is a Polo or a Lamborghini.

Snow foam firstFoam loosens the grit and lets it run off before anything touches the paint.

Two bucketsOne with soap, one with clean water to rinse the mitt, so dirt never goes back on the car.

Microfibre onlySoft, clean cloths, and separate ones for the wheels and the bodywork.

Towels washed every dayEvery cloth and towel is washed and sorted at the end of each working day.

Dried without swirlsLaid on and lifted, not scrubbed in circles.

Checked before we leaveA car is only finished once it would pass in front of you.

Already got them?

Here is the honest part. A wash cannot take swirl marks out. Not ours, not anyone's. Once a scratch is in the paint, washing the car more carefully stops new ones forming, but it does not remove the old ones.

Taking existing marks out is paint correction, which is a different job to washing. If you want to know what your paint actually needs, send us a photo of the bonnet in the sun and we will tell you straight, including when the answer is that it is not worth doing.

What washing properly does do is stop it getting worse. That is the cheapest thing you can do for your paint, and it is why so many of our clients have us come every week or every second week.

Questions

Are hand washes always safer than an automatic?

Not automatically. A hand wash with one bucket and a cloth that did the last ten cars can do as much harm as a brush. What protects the paint is clean water, clean cloths and a light touch, however it is done.

Why do I only see them sometimes?

Swirl marks only show under a single strong light, like direct sun or a torch. In shade or on a cloudy day the light is spread out and the scratches disappear, which is why most people notice them suddenly, at a petrol station or in a car park.

Is my car too far gone?

Probably not. Most daily drivers have some light marking and still look good once they are kept properly. Send us a photo and we will tell you honestly.

Stop it getting worse

Add your cars, choose how often, and see what it costs to have them looked after properly. About a minute, nothing to pay.

Tailor a plan Book one wash

Want to send a photo of your paint? WhatsApp 076 549 7157