There may be stains that are caused by mold and mildew.
Oxiclean aluminum siding.
Use oxiclean as directed and scrub surfaces where mold has discolored the material.
I recently found out that aluminum siding oxidizes over time giving it a chalky appearance.
Better to go with a product like whink rust stain remover to clean rust from metals and rust stains from fabrics.
If mold or mildew is the culprit spraying with a bleach solution will remove it.
To clean aluminum siding having mildew use a solution of one part bleach and four parts water.
This oxidation can t be removed by power washing alone.
Oxygen is a major ingredient in oxiclean and an essential contributor to rust.
This is a cedar shake siding restoration job we did in rhode island.
If you go to the very end of the video you will see a completed photo when the wood is d.
Oxiclean is not recommended for use on rust.
Aluminum siding oxygen bleach such as oxiclean is safe to use on aluminum siding and effectively removes mold and mildew that can damage aluminum surfaces.
Spray this mixture on remaining spots.