Rustcan come from a variety of sources, mainly from metals or fertilizers that contain iron. Most concrete rust does not travel more than 1/16” deep into the concrete.
Orange Battery Acidis an orange flash acid “burn” that can travel down your driveway and into the street. Flash acid burn looks almost identical to rust in appearance, but it is very different. If your battery acid is white, unfortunately this can travel throughout the entire slab and there is no cleaner that can remove the white stain.
F9 BARC is GUARANTEED to remove THE MOST concrete rust, fertilizer staining and orange battery stains than ANY OTHER product on the market! F9 works on CONCRETE, BRICKS, PAVERS, TILE, STONE, STUCCO, ASPHALT, VINYL, SIDING, SHINGLES, RUBBER, SIDEWALKS AND MORE!