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Concrete sealer

Old 12-02-2020, 10:22 AM
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Default Concrete sealer

I have never used it before. when we had our dock and concrete decking put in it looked good for a few years and stayed fairly clean. I pressured washed it last year and only used a 2000 psi washer and it looked like new again. The problem is it now it get filthy in very short order. I am talking almost black in most of the flat work.I am assuming the first time I pressured washed it I cleaned out all the small stuff and now it is holding water better. Will a good concrete sealer help in keeping it cleaner longer? Thanks
Old 12-02-2020, 10:36 AM
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Originally Posted by mikeloew View Post
I have never used it before. when we had our dock and concrete decking put in it looked good for a few years and stayed fairly clean. I pressured washed it last year and only used a 2000 psi washer and it looked like new again. The problem is it now it get filthy in very short order. I am talking almost black in most of the flat work.I am assuming the first time I pressured washed it I cleaned out all the small stuff and now it is holding water better. Will a good concrete sealer help in keeping it cleaner longer? Thanks
I am sure more knowledgeable members will chime in here, but I think sealer will help. I sealed a 60’ brick walkway and 25’ wide concrete driveway apron this year. The driveway apron application was meant to prevent spalling from water/salt intrusion in the winter. The walkway application was to prevent/inhibit organic growth. Both have stayed much cleaner.
Old 12-02-2020, 10:58 AM
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I just re-sealed my driveway about a month ago, with ChemMaster polyseal. The s*it is ridiculously slippery when wet,but looks wet for about six months. I would suggest something that soaks in better like a silicone tile or stone sealer that soaks in. It doesn't look wet when it dries.
My gf and I have both slipped and busted our a$$es once so far after a rain.


Old 12-02-2020, 11:18 AM
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Sealer won't prevent the dirt from getting onto your concrete, but it will prevent the dirt from getting into your concrete. At least that's been my experience. In other words, cleaning well sealed concrete is easier. I switched to solvent based sealer a couple years ago. Buy it in a 5 gallon bucket. Get yourself a professional concrete sealer sprayer so the seals in the sprayer will hold up to xylene. Xylene is what you clean the sprayer with. If you stay on top of keeping it sealed, it's easy to keep up with. If you let it go too long without re-applying sealer, it's more work to get the concrete clean in order to reseal. Apply sealant every two to three years. I've been getting three out of the solvent based stuff.
Old 12-02-2020, 11:18 AM
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Originally Posted by mfix View Post
I just re-sealed my driveway about a month ago, with ChemMaster polyseal. The s*it is ridiculously slippery when wet,but looks wet for about six months. I would suggest something that soaks in better like a silicone tile or stone sealer that soaks in. It doesn't look wet when it dries.
My gf and I have both slipped and busted our a$$es once so far after a rain.

There's a non-slip additive you can put in the sealer that makes it less slippery.
Old 12-02-2020, 11:59 AM
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There are also different gloss levels offered depending on your use. Typically interior sealers are higher gloss level since they aren’t expected to see water (thus traction when wet is not an issue). Exterior sealers have a lower gloss level and offer better traction when wet.
Old 12-02-2020, 04:59 PM
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In my case I think it is mildew and dirt.I am in the Keys and we have had so much rain this summer.
Old 12-02-2020, 05:28 PM
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Originally Posted by mikeloew View Post
In my case I think it is mildew and dirt.I am in the Keys and we have had so much rain this summer.
Acylic sealers don't stand up well to UV light.
I used them all the time on basement , garage or interior slabs. Work great. Outside, I think it's a waste.
google silane/siloxan sealers. Might be what you want
Old 12-03-2020, 10:42 AM
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I just checked. I applied Surebond SB-7700. It’s got an anti fungal component. I’m happy with it but it’s only be down for a few months and I am located in the Northeast.

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