S2 Touchless Snow Foam Wash This product is concentrated touchless shampoo, suitable for cleaning small cars and trucks, generates stable rich foam to easily remove road dust, grime, oil stains and insect marks. Non-destructive to aluminum and nickel-plated surfaces and other non-ferrous alloy coatings. This products contains preservative additives.The average dosage for a small car is 20-50 grams of concentrate.