Venture Case Studies

Long-term Iron Contamination Case Study

The following case describes the absolute perfect storm for severe, long-term iron contamination.

Here I break down typical driving and washing habits to explain what happens over the life of your vehicle.


When you use your brakes, microscopic metal shavings fly off at temperatures exceeding 150 Centegrade. They aren't just sitting on your paint; they are hot enough to melt a tiny pocket into your clear coat and fuse to it.

Normal shampoo just glides right over them.

If you don't chemically dissolve them, they will sit there, react with moisture, and begin to rust. As iron rusts, it expands to four times its original size, slowly rupturing your clear coat from the inside out.


1. "100% Urban Driver" = Extreme Brake Fallout

City driving is where iron fallout thrives. In a city, drivers are constantly accelerating and braking between traffic lights, junctions, and roundabouts.

  • As established by environmental studies, stop-and-go city driving produces exponentially more brake wear particulates per mile than continuous motorway cruising.
  • Motorists that mainly drive in the city, the paint is constantly flying through dense, fresh clouds of hot metallic dust from your own brakes and every vehicle of around you.

2. "Supermarket Cleaning Services" = Sealed-in Contamination

Supermarket car washes that operatate in the car park are high-volume, fast-turnaround businesses. They focus strictly on making your car look clean to the naked eye as quickly as possible.

  • They do not use specialized fallout removers because it takes too long to dwell and costs too much.
  • Supermarket washes include a spray-on wax or a "wax rinse" at the end.
  • Because they never chemically removed the iron first, that cheap wax was sprayed directly over the sharp, hot metal particles.
  • This effectively sealed the iron against the paint, trapping it in a moist environment where it could oxidise and rust undisturbed for years.

3. "Never Had a Decon Clean" = The 5+ Year Build-Up

Remember: Urban driving is what counts, regardless of milage, a vehicle with as little as 5K miles will need to be decontaminated.

And in an ideal world, NEVER use a high volume supermarket service to clean your investment.

This is what I see every time I clean a car that's never been decontaminated.

  • Because the microscopic iron particles have been embedding, rusting, and layering on top of each other for the life time of your vehicle,
  • normal car shampoo and water simply glide right over bonded iron, and,
  • when I arrive, and spray with Bilt Hamber Korrosol, it triggers a massive, chemical backlog.
  • The liquid turns purple everywhere, because I'm finally melting away the damage caused by urban commuting that had been ignored and waxed over.