Can I do this on my porch/patio/sunroom?
I usually just answer no to this question, because I don’t think it would hold up at all. I think the same thing about a concrete floor that is moist or sweats (like a basement). So I took my two concrete pavers, sprayed the underside and topside with water, and let them bake in the sun for a few days. Then I sprayed them again and threw them in the deep freeze.
The result? They actually held up really well, even with the unsealed edges. My experiment was only a few days of rough conditions, not months or years like they would have to endure if actually installed…but in a three season sunroom or something this might just be a good solution.