So set about washing the Roc for the first time using the two bucket method, and as expected she came up beautiful. However on closer inspection, I could see various small spots all over the paintwork that looked like small rust spots (which I knew to be ferrite iron particles bonded to the car from railways, sea port etc.)
I then reached for my bottle of Iron-X. For those that don't know, it's a clear liquid in a bottle with a spray attachment that absolutely stinks of rotten eggs. When the Iron-X comes into contact with ferrite iron, it safely dissolves it and turns bright purple in the process. So I sprayed the whole car and waited a few minutes. To be honest I only expected it to find the few spots I had seen, but was then amazed to see rivers of purple running down all over the car. The driveway looked like someone had been stabbed
and all this on a brand new car 
After rinsing and washing / drying again, the paint felt like glass and all of the small contamination spots I had seen were gone just leaving a deep pure White.
I then de-tarred using Tardis (very little found) then clayed. The clay brought off almost nothing showing that the Iron-X and Tardis had made this stage pretty much redundant.
Finally went over the car with Werstatt prime, then Acrylic Jett so leave an amazing glossy and wet shine.
Well impressed.
