Autoglym Magma 500mlProduct Details:Attack environmental contaminates with Magma - our colour-transforming cleaner that turns red when it reacts with iron particles, resulting in a satisfying deep clean that’s easy to rinse.Cause some eruption Eliminate paintwork that feels rough to the touch and abolish spots that look like tiny rust specks. It’s time you put your car through a deep clean with Magma for a silky-smooth finish. Safe to use on all external surfaces, quick at seeking out the smallest iron particles and easy to rinse off, you’re one wash away from enjoying spotless bodywork and wheels.pH neutral formula - Safe to use on wheels, glass, paint and trim, this colour-changing formula has impressive iron-shifting abilities that don’t cause unnecessary corrosion or damage to the paintwork. It just leaves your car feeling shimmeringly smooth.Effectively fast - Spray on, wait five minutes, rinse off with high pressure - Magma rapidly removes tiny particles of iron that appear as specks on exterior paintwork or brake dust on wheels. For a spotless finish, dry with a dampened InstaDry.Colour transform technology - Watch in awe as our Magma comes into contact with iron and turns a bright red. Designed to help loosen iron from the surface of your car (and make rinsing easy), we can finally say ‘seeing red’ is a good thing.