by Khicks4330
How does CLR work on aluminum?
Has anyone had any adverse affect on using CLR on aluminum trim around shower door?How long can you keep it on before rinsing?
Suggested Project Book
What will CLR do to copper or aluminum?
CLR will take the finish off of aluminum and copper.
What surfaces should I not use CLR on?
DO not use CLR on natural stone or marble, terrazzo, colored grout, painted or metallic glazed surfaces, plastic laminates, Formica, aluminum, steam irons, leaded crystal, refinished tubs or any damaged or cracked surface. CLR may etch older sinks, tubs and tiles. CLR is corrosive. Avoid contact with wood, clothing, wallpaper and carpeting. Some laminated surfaces (counter tops) are coated with a synthetic surface which may be affected by rust removers; clean spills immediately. CLR website https://www.thecarycompany.com/facility-supplies/cleaners/clr/faq Use Brillo pads
when I had doors on the tub, it worked well. just keep the area wet with the solution. don't let it dry out. it may take a few application's to remove the gunk.