WOCA Exterior Wood Cleaner is used for the cleaning of wooden decks, garden furniture and exterior cladding prior to the application of WOCA Exterior Oil. The cleaner removes moss and algae and prevents the resettlement of it, and it is also suitable for cleaning brickwork and concrete plates. Exterior Cleaner is approved by the German Biological Building Association (IBR), and has no impact on pets or vegetation. Consumption: 6 to 10 square metres per litre. Allow 5 - 10 working days for delivery.