ALKEM is a cleaner for walls and external hard surfaces which removes moss and algae. ALKEM is based on organic acids, is safe to use and cleans without the risk of damage to surfaces. Suitable for many surfaces including: Brick Concrete Tarmac Paving Renders Slate Natural stone Timber Glass Plastics Greenhouses Play Equipment and Synthetic Sports surfaces.
Apply ALKEM when rain is not likely. Do not use in very cold conditions or where the surface is unlikely to dry after application. Dilute with up to 5 parts water and apply using brush or spray so that surface is thoroughly wetted. Coverage is approximately 25m2 per litre of concentrate depending on absorbency of surface.