Safe/ One Restore barely touched the hard water staining on the glass or the frames. I just purchased a J Flint system from here on WCR to restore the glass. But is there anything else I can use to safely and effectively restore the brown aluminum window frames.
I really want the job. It is a large medical complex. And I believe that if I impress them with taking care of the stains, I have a good chance at getting the window cleaning of all the buildings.
Winsol offers a product called, Special Metals Cleaner but Its not going to take off mineral deposits, this is for grease and finger prints. Dave is right, Eaco Chem may have a product that could help. Sorry we don’t have something stronger for frames