Clarke Concrete Cleaner

Due to its strong hydrochloric acid-based mix, this is best thought of as a ‘desperate measures’ solution. It works superbly on both ingrained oil and fresh stains, but it’s not pleasant to use. As well as fizzing alarmingly during treatment, it really lathered when rinsed away. To make sure there’s no reaction with the surface, we strongly suggest trying this on a hidden section first.