The other thing is we need an open slab so that that water stain can get in and cling to the pores of the concrete without putting a layer of pigment or dust. Because once the carrier the water ...

And seriously, let the surface dry. Give it a solid 24 hours. There are two main types of concrete stains: water-based stains and acid-based stains. Acid staining is a popular choice because it ...

If the concrete still bears a mark, don rubber gloves and goggles and do the following: Mix one cup of trisodium phosphate in 1 gallon of hot water, then pour the solution over the stain.