Instant colour changing indicates the process of rapid decomposition of the accumulated contaminants. The formula reacts immediately upon contact with brake dust and iron particle and purple dots or spots can be seen on the surface once you spray G-Activ Iron Remover onto the wheel. The more contaminant it has, the darker the colour depth of purple will be shown.

Accumulated brake dust and iron particle could be difficult to remove by using normal shampoo and brush; with G-Activ Iron Remover, it “softens” and decomposes the stubborn brake dust and iron particle, as such, the contaminants can be rinsed away easily.