For general cleaning of dirt and grime from galvanised iron or steel use SORTED Dirt and Grime which safely cleans all outdoor surfaces. This hose end sprayer is easy to use; simply click the pack onto the end of your hose, spray on the environmentally friendly and biodegradable cleaning formula and rinse off. For roofs where water is collected, disconnect during use and rinse thoroughly before reconnection.
If your galvanised iron or steel is stained with moss, black moulds, algae, lichen or other biological growth, useSORTED Moss and Mould . This powerful targeted formulation kills damaging moss, mould, algae and lichen. It goes on to protect the surfaces all season long. This hose end sprayer is easy to use; simply click the pack onto the end of your hose and spray on and leave, without rinsing off. SORTED Moss and Mould penetrates the surface killing the damaging organisms and they will weather off over time.