Rust-Oleum 238475 "Epoxy Shield" Concrete Etch

Prepare bare concrete for coating, painting, or staining. Citric-acid based formula is easy and safe to use indoors or outdoors. Opens up tiny pores within the concrete to allow for maximum penetration and adhesion. Environmentally friendly, will not harm grass or plants. Great for removing efflorescence. null -

No dangerous acids or fumes Won't harm grass or plants Intended for use on bare concrete surfaces only Highly concentrated formula makes 2 gallons of etching solution. Covers 250 square feet