Tired of my front steps getting split from expanding water in the winter so I got this. One gallon is plenty for 5 steps and a landing but it depends on how fresh the mortar work is. If you are already seeing heavy cracks then forget it you need to fix the cracks first.

It's like spreading skim milk so use a heavy brush and spread it around. Goes on white but dries clear. Real clear like you wonder if it's even there. Even after multiple coats its not even noticeable.