This commercial acid is powerful stuff. It really burns if it gets on your skin so wear thick rubber gloves. You have to rub and brush that acid right down into the pores of the concrete. Once the acid staining is over the pores are still unsealed so I can paint the rose vines and buds pink and green with epoxy. Then a good sealant.
For care purposes always tarp your garden statuary, fountains, etc... Or bring them into the garage during winter.
