Caliber Alumi-Eetch removes years of streaks, stains, and oxidation from all types of aluminum. Easy application involves no scrubbing, just a spray-on and rinse-off action. Alumi-Skin cleaner will not harm carpet, bunks, wiring, rubber, paint, or vinyl surfaces. Formula can be applied at full strength or diluted to achieve your desired results. Leaves behind an off-white finish.