Kurust, this product is usually used on car parts to protect against rust and is used to prepare metal for paint.
I applied the Kurust all over the surface of the iron. Although alarming, the metal instantly turns this weird purple blue colour; Luckily I have used it before so I knew what to expect.
Close up of the purple aubergine.
After 20 minutes or so, the colour starts to dull down until it goes black, and this is usually when you paint your metal. I have chosen to leave the sculpture black, but at the moment it is too dull, so in a bit I will sand back little bits of the surface to show up the finer details and highlights.