Brake dust embeds in paint and keeps corroding after the car looks clean. An iron remover dissolves it chemically, which is the only way to take it out without abrading the surface — and it is the step that decides whether a coating bonds to paint or to contamination.
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Our pick A pH-neutral iron remover that turns purple as it works.
Out of stock right now. The alternatives below are available.
The color change is genuinely useful rather than a gimmick: you can see how much embedded brake dust the paint was carrying, which is usually a surprise. Neutral, so it is safe over a coating.
A solvent that dissolves tar and adhesive residue.
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Tar does not come off with a wash and picking at it with clay drags it across the panel. Dissolving it first is the only approach that does not mar the paint.
Solvent-based, so it will strip a coating where you use it. Spot-treat, then re-top.
The iron remover that made this category mainstream.
Out of stock right now.
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Still the reference product, and the one most shops will name if you ask. Works the same way and just as visibly.
Frequently backordered, which is why it is not the pick despite being the better known bottle.
A rubber-faced mitt that does the job of a clay bar.
Out of stock right now.
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Faster than clay over a whole car and it does not need throwing away when dropped, which a clay bar does.
Needs constant lubrication and a light touch. Used dry or pressed hard it will mar.
Clay bars with a lubricant, sold together.
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The cheapest way to find out whether your paint is contaminated at all, and it includes the lubricant people otherwise forget to buy.
Drop the bar and it is finished. Clay picks up grit from the floor permanently.
Wash the car, dry it, then run your hand over the paint inside a thin plastic bag. Smooth means clean. Gritty means bonded contamination is sitting on the surface, and no amount of washing will shift it.
A pH-neutral iron remover used as directed will not. Tar removers are different: they are solvent-based and will thin or strip a coating where they touch it, so spot-treat with those and re-apply a topper afterwards.
Once or twice a year for most cars, and it is worth doing before a topper goes on. Sealing contamination under a fresh layer preserves it rather than removing it.
This is one shelf of decontamination. The rest of what a coated car needs, and what each shelf is for, is on the shop — and if you would rather have the work done properly, the installer directory lists shops by what they publish rather than what they pay.
Published rates are a range. What you pay comes down to size, paint condition and how much correction the finish needs first. Tell us the car and we will put it in front of shops that publish their pricing.
Once a month, read off the price lists of the 547 shops that publish one. Whether you are about to buy or about to quote, it is the same data from opposite sides.
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