This product contains nonionic surfactant and sulphoaluminate, which can be reacted with metal rust to produce purple foam, nd completely remove the stuborn spots(rust power)left on and completely remove the stuborn spots(rust power)left on the wheel and car paint while the brakes works, specially in the rainy days.
It is different from the normal cleanser which can only clean the rust and dirt.
It is neutral pH cleaner with special smell but no harm to leather and skin.