What is an iron remover and what is its value in detailing?

Iron removers are break down ferrous metal particles embedded on your vehicle.  Iron removers are popular for chemically dissolving break dust on wheels.  But it also dissolves ferrous metal particles on paint.  Use on the paint, is considered a chemical decontamination step, that proceeds the mechanical (detailing clay bar treatment) decontamination step.  Clay can also remove this contamination.  But it is ideal to start with an iron remover treatment.  It is more effective at removing fallout.  With the importance of having a surgically clean surface prior to ceramic coating vehicles, the combination (for certainty) of using both iron removers and clay bars have become an accepted standard two part cleaning stage before polishing or applying protection.

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They have become popular due to being encouraged as a initial two part step in decontamination, prior to applying a ceramic coating.  As three of the four (Gyeon, Carpro, and Gtechniq) brands that supply iron removers are commonly known for their ceramic coatings.

All of these are more than adequate options.  But each have some unique differences that may turn one into a preference for you.  For most cases Gyeon Iron is my top choice.  Koch Chemie is my number two complimentary option.

Gyeon

My preference for Gyeon Iron“>Gyeon Iron, really comes down to user experience.  The company changed the formulation recently.  I cannot say it is stronger or more effective of a product versus the previous version.  I would not rule out it being a weaker product.  I can also make the case that Carpro and or Gtechniq iron removers get the job done just as well if not (?) better.  The one benefit of the new formulation is the bad (rotten egg) smell we are accustomed to with these products has been greatly minimized.  I do not care that much about, being a professional that has become numb to the experience.  But I am around people who probably find it unpleasant, I also know many other consumers would appreciate doing without the smell.  There is also the element of usability, particularly in non ideal environments relative to the other products mentioned.

Carpro and Gtechniq

In non-ideal conditions, I have seen the Carpro IronX and GTechniq W6 Iron Remover struggle to rinse off (particularly Gtechniq) out in direct sunlight.  Most products are compromised in direct sunlight.  I pushed my testing to the extreme somewhat, to draw a conclusion.  It was more of a case of Gyeon Iron (not perfect) being more forgiving left out in the sun.  Not a negative, more of a compliment to Gyeon when you are supposed to be more mindful of your environment.

Koch Chemie

Koch Chemie Reactive Rust Remover has an advantage or disadvantage over the other products, depending on how you look at it.  It is the reason why it is not my preferred Iron Remover product for all cases.  But for the same reason I like to have it on hand, for specific use cases.  If I want to spray the product in a specific area, have a concentrated amount in one location, or if I leave it to dwell in one location, the jell-like mixture comes in handy.  Now it does not spread as easily nor does it wash off as easy as the other products.