For gentle and intensive cleaning of aluminium rims and rims made of steel from brake abrasion and other types of soiling. The cleaning process can be controlled visually by change of colour and reaches its optimum when the cleaner on the wheel rim changes its colour (to violet). As the pH-value of the product is slightly alkaline, even sensitive aluminium rims as well as wheel nuts are not affected (acid-free). Meets the requirements of the detergent and cleansing agent regulations. Note: Do not use on hot rims or in the blazing sun.