For general cleaning of dirt and grime from un-coated architectural corten steel use SORTED Dirt and Grime which safely cleans all outdoor surfaces.
Simply click the pack onto the end of your hose, spray on the formula and leave for 2-3 mins to penetrate. Then hose off. A wipe will aid in the removal of any stubborn marks.
Be aware that Corten steel has a natural oxidised surface rust and this will absorb oils from the environment. SORTED Dirt and Grime may remove the oils and lighten the oxide layer. Test a small area first.
SORTED Dirt and Grime removes mud, dust, salt water, surface oil, bird droppings, insect marks, on all outdoor surfaces.
How to solve the problem 
My Favourites (
My Kiwicare 
Email 
Print 