Concrete Sealing

Old 12-14-02, 12:21 AM
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Question Concrete Sealing

the contractor I hired to put in a concrete walk and patio came today to seal it. I saw him mixing the Diamond lacquer (sealer) with paint thinner and asked if alright. He said yes, and that he needed to do that so that his sprayer would work. He said if he didn't dilute the sealer that it wouldn't spray out good since sealer is thick and goopy. Turns out the mix didn't really give him what he wanted plus they used a roller anyhow. So it seems the thinner was a waste of time and the big question I have...will the paint thinner hurt in any way the stamped colored concrete ?
Old 12-14-02, 08:28 AM
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Concrete sealing


If the concrete is cured (28 days), it is OK. Some sealers are solvent based, to be used with sprayers.

However, if your stamped concrete is colored, it is recomended test the sealer in a small piece to avoid problems.

Hope this helps,
Old 12-16-02, 12:48 AM
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I only waited 21 days before sealing. There's lots of rain coming and I thought 3 weeks of curing was sufficient. Hope I made the right choice. How does one really know if cured completely ?

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