My front step, and my back patio, are covered in very old AstroTurf. I've read the older threads on how to remove the turf and residual glue. What I'm wondering though, is if I will need to seal the concrete once the turf is up, or can I just clean it? I live in Arizona--the sun is the issue here, not mold or freezing temps. My father decided to use a concrete paint when he removed the AstroTurf at his house--it is ugly, it peels, and every year or so he is repainting or touching up. I would rather just have the clean concrete, but a friend told me that concrete has to be covered or sealed. I'd like to know what I'm getting into before I take up the turf. Any feedback or suggestions are appreciated!! Thank you.