Hard Water Remover
Proper GSO Gear : Gloves / Goggles
TEST A SMALL AREA BEFORE APPLYING TO ENTIRE SURFACE
Notice: This should be performed on a cloudy or cool day.
First, clean the glass.
Next, apply GSO Hard Water onto glass using a scrub pad, towel, wand, etc. Continue scrubbing for 15 – 20 seconds. Give a little extra attention to heavier built up areas.
Lastly, using a separate wand and squeegee, use soap and water to stop the dissolving process preventing possible damage to the glass. Areas with heavier build up may need another application. Safe for use indoors and out.
Removes: mineral deposits, hard water, runoff from brick and mortar
contains: Hydrofluoric Acid, Sulfuric Acid