GYEON Q²M RestartWash Decontamination Shampoo for Coatings 1000ml

Break down contamination before it does damage – GYEON Q²M RestartWash as a decontamination shampoo

What's the advantage of a decontamination shampoo over a normal car shampoo?
A normal car shampoo lifts loose dirt – road dust, pollen, bird droppings. What it doesn't touch: chemically bonded contaminants like iron particles from brake dust, tar spots, industrial fallout and limescale. These work their way deep into paint pores and sealants and won't shift with a normal wash. GYEON Q²M RestartWash carries active decontamination components that break down exactly those substances – in a single wash.

Even after a thorough regular wash, a car often doesn't look as clean as it should. The reason usually sits in chemically bonded contamination that builds up over time: iron particles from brake dust that settle into the paint as a brown haze, tar and resin spots, industrial fallout and limescale. GYEON Q²M RestartWash pairs the cleaning power of a quality car shampoo with active decontamination components – iron remover, tar remover and a descaler in one product. One wash that really does start from scratch.

• 3-in-1 decontamination in a single wash: iron remover, tar remover and descaling components work at the same time – no separate pre-wash step with individual products needed.
• Coating-safe formula: RestartWash is built so it won't harm existing coatings and sealants – ideal for the maintenance wash on coated cars.
• Visual feedback through a colour change: the iron-remover component reacts with iron particles and visibly changes colour – you can see where, and how much, contamination has lifted.

Daniel's tip from day-to-day: RestartWash works best on pre-wetted, cool paint. In the sun or on hot panels the product flashes off too fast and leaves residue. The colour reaction (purple-red) shows you where there's iron contamination – let it dwell there for 2–3 minutes before you rinse. On heavy contamination it's worth following up with the GYEON Q²M Iron as a focused treatment.

Why a regular wash on its own isn't enough

Iron particles from brake dust are the most common – and often most invisible – contamination problem on cars. Barely visible to the naked eye, they lodge in clear coat and sealants, oxidise and create those typical brown streaks on light-coloured cars. On dark cars you often only notice them by touch or under raking light.

Normal shampoos have no way to break these chemically bonded particles loose – they just glide over them. GYEON Q²M RestartWash contains chelating compounds and reducing agents that convert iron particles into soluble compounds and pull them out of the surface. That's the fundamental difference from a conventional wash.

How to use it as a two-bucket wash

RestartWash drops straight into your normal wash routine. You mix the shampoo with water at the usual ratio (depending on the concentration and how dirty the car is), rinse the car down first and then wash with the two-bucket method. The decontamination components do their thing during the wash step – no separate pre-spray and dwell needed.

For maximum bite on heavier contamination, spray the car with undiluted RestartWash after the initial rinse and let it dwell for 2–3 minutes before the actual wash begins. The colour reaction from the iron-remover share shows where iron contamination sits and how heavy it is. Then rinse thoroughly and wash as usual.

Especially valuable on coated cars

Coated cars need a care routine that's gentle but still effective. Conventional decontamination products can run aggressive pH values that attack coatings. RestartWash is formulated specifically for coated cars – the pH is balanced and the active ingredients are used in a targeted way. So the decontamination gets done without compromising the sealant you paid for.

Used regularly – every 4 to 8 weeks depending on mileage and how hard you're on the brakes – RestartWash stops chronic contamination layers building up, the kind that weaken even the best coatings over time. The paint stays slick, the sealant works at its best, and the car is genuinely clean – not just to the eye.

Where RestartWash sits in the detailing workflow

In a pro workflow, RestartWash takes the place of the pre-wash step and the base shampoo at the same time. For a lot of detailers that means fewer products, fewer steps, the same or a better result. On cars that only get detailed every few weeks, a RestartWash wash is the ideal way into every care cycle.

After a wash with RestartWash we'd recommend a visual check under raking light. Any leftover resin or tar spots can be spot-treated with the GYEON Q²M Tar. After that the car is genuinely ready for the next care or sealing stage – whether that's a quick detailer, a coating top-up or a full re-seal.

The result: a real restart

The name RestartWash says it all: after the treatment the car gets a real restart – freed from all the chemically bonded contamination that piled up in normal washing. Paint and sealant can perform at their best again. Water beads better, the gloss looks deeper, and the next layer of protection – whether GYEON Q²M WetCoat straight after the wash or a cured coating – bonds more reliably to a genuinely clean surface.

Bottom line: run Q²M RestartWash regularly and you'll reach for harsher decontamination products less often, you'll look after your sealant, and you'll keep your car in top shape for the long haul.