Hello, A few years ago we got a stamped cement patio. About 1 1/2 years ago we put on a sealer (something from Lowes, I forget what). This year the patio has white/grey patches in it. I've heard that this could be from the moisture in the cement and that I need to strip the concrete and re-apply some more sealer.
Can you suggest a good stripper and sealer? I really don't want to try something from a place like Lowes again unless I know it's going to work.
I rather buy it from people who know what their talking about.
Thanks for your time,

There can be issues when stripping sealer from stamped concrete. Sometimes when removing the sealer you can remove some of the stain as well. If this happens then you may need to apply a concrete stain. here is what I would suggest.

1. Strip with this: Concrete Sealer Stripper
2. If needed apply a matching concrete stain: Exterior Concrete Stain
3. Apply a solvent based sealer: Stamped Concrete Sealer