Bought a $200 'desert-proof' sealant for my patio, it peeled off in 3 months

Fiona Kim · 2026-04-22T09:45:04.590453+00:00

I saw this ad for a special sealant that claimed to handle 120 degree heat and sandstorms no problem. Spent $200 on a five gallon bucket and spent a whole Saturday rolling it onto my flagstone patio in Tucson. Looked great for about 6 weeks, then the whole thing started flaking off like sunburned skin. Now I'm stuck with a patchy mess and I have to sand it all off before trying something else. Has anyone found a sealant that actually holds up to direct sun here?

mark_chen624mo ago

That Tucson sun just laughs at sealants.

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wren2304mo ago

Actually, some sealants just can't handle the UV.

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ward.anna4mo ago

Oh man, that's brutal! I'm in Phoenix so I feel your pain on the sun just destroying everything. Was the flagstone clean before you put it on? I'm wondering if there was some dust or residue from the desert that kept it from sticking. I've had that happen with paint before where it looks fine for a month and then just lifts off. Did you use any kind of etching or cleaner beforehand?

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