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Old 04-29-2013, 04:33 PM   #1
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What do I do to my concrete patio


About four years ago I had a new patio poured. I think it was sealed and they told me to seal it again after 3 years. So this spring will be 4 years and I am wondering the best approach here. I was hoping to use a stiff brush and some elbow grease to clean the concrete, then seal it. My questions are, what is the best way to clean the patio? Name or type of a good sealer, I prefer a water based sealer that is flat, and does not stink to high heck when applied. thanks
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Old 04-29-2013, 07:06 PM   #2
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What do I do to my concrete patio


izzat stamped conc OR just collected dirt ?

wtr-bas'd sealers are worthless im-n-s-h-fo they're too thin to provide any worthwhile protection & wear off quickly,,, we'd acid wash ( apron/vest store muriatic 1:8water then neutralize w/regular,,, ammonia diluted w/wtr 1:8,,, let dry & seal w/solvent based sealer cut w/xylene 1 1/2 40% solids sealer:1 xylene,,, ALWAYS apply w/wet edge to prevent roller marks,,, NEVER seal in direct sun OR on hot conc,,, when the 1st coat is dry enough to walk on w/o sounding as if you're walking on bubble wrap, roll on another coat cut the same way repeat next year

IF the smell bothers you, let your bride do the work the best sealers will smell while the worst don't
you may not like this advice but its what we pro's do for our clients

ps - don't expect to find anything good at the apron/vest/sher-wms stores

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Old 04-29-2013, 07:47 PM   #3
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What do I do to my concrete patio


Acrylic is the way I went. TIAH OTC was relatively expensive, about $119 for the 5 gallon container.

http://www.wrmeadows.com/tiah-otc-ac...ling-compound/
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Old 04-29-2013, 08:41 PM   #4
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What do I do to my concrete patio


Use a penetrating sealer silane/siloxane based,it is the longest lasting sealer you can buy,should get about 10 years out of it before resealing.

Here's some examples http://www.nextag.com/siloxane-sealers/products-html
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Old 04-29-2013, 09:39 PM   #5
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What do I do to my concrete patio


There's a few ways to go at it, but obviously first, it needs to be clean. I'd powerwash it and let it dry a few days before sealing. If that doesn't get it clean, you may want to try IRC's recommendation for cleaning.

As for sealer, what you're looking for (flat and water-based) is contrary to what 99% of folks with stamped concrete desire. A solvent-based enhancing (acrylic) will make the color and contrast of the colored concrete and colored release agent "pop". If that is certainly what you don't want, then avoid that kind of sealer. I have had a client in the past that wanted the same thing as you're asking, and we "satisfied her" by simply using a solvent-based siloxane. You can find plenty of manufacturers of water-based siloxane as well, but IMO, they won't last as long.

Another option, if you want the enhancing abilities minus the gloss, would be to use an high-solids enhancing acrylic with a low-luster paste mixed in which will get rid of most the sheen. You might want to mix in some traction additive as well..........
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Old 04-30-2013, 05:55 AM   #6
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tnx, jomama, for mentioning that - we use sher-wms shark grip added to the sealer to knock down the artificial gloss many think sealers impart,,, kine of like ethanol in gas, you have to constantly stir so it doesn't settle out of solution.

other decent cleaners are tsp or dawn dish detergent.
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Old 04-30-2013, 06:05 AM   #7
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If you got four years out of the sealer applied before why not call the company and ask them what they used?

You may want to search industrial coatings as well if you have trouble finding good products and only have local access to hideous box stores.
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Old 04-30-2013, 10:34 AM   #8
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Good information from jomama about using a solvent based sealer which i forgot to mention,also be aware that if you decide on an acrylic it needs to be resealed on a yearly basis.
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Old 04-30-2013, 01:45 PM   #9
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We must have really crappy concrete these days or contractors are dumping in way too much water and sand, one should not have to "seal" concrete, I poured these slabs one by one over time to cover about 12x24' for my dog yard 12 years ago, notice there's no cracks, spalls or damage:

http://i.imgur.com/SdhZDO5.jpg

If concrete is falling apart so fast maybe we need to go back and look at how we are making and mixing and curing this stuff, the ancient Romans used concrete, their aqueducts and things still stand, with no sealer...

This concrete was Holcym Portland cement and sand, 1 part of cement to I recall 9 parts of sand, no additives, but I laid plastic sheeting over the concrete and kept it damp for one week.
A contractor poured concrete at work in the alley for the driveway, within a few months large cracks already started showing, now they are about 1/2" apart, lousy prep, lousy soupy concrete, no after cure, they poured, floated it and left.

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Old 04-30-2013, 02:42 PM   #10
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What do I do to my concrete patio


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Originally Posted by RWolff View Post
We must have really crappy concrete these days or contractors are dumping in way too much water and sand, one should not have to "seal" concrete, I poured these slabs one by one over time to cover about 12x24' for my dog yard 12 years ago, notice there's no cracks, spalls or damage:

http://i.imgur.com/SdhZDO5.jpg

If concrete is falling apart so fast maybe we need to go back and look at how we are making and mixing and curing this stuff, the ancient Romans used concrete, their aqueducts and things still stand, with no sealer...

This concrete was Holcym Portland cement and sand, 1 part of cement to I recall 9 parts of sand, no additives, but I laid plastic sheeting over the concrete and kept it damp for one week.
A contractor poured concrete at work in the alley for the driveway, within a few months large cracks already started showing, now they are about 1/2" apart, lousy prep, lousy soupy concrete, no after cure, they poured, floated it and left.

Who said anything about it falling apart?? It's just dirty and sealer will help keep it clean and trap the release from wearing away.......
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Old 04-30-2013, 05:00 PM   #11
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What do I do to my concrete patio


suspect the alley job was just a bad jnt pattern OR no joints placed at all - place, screed, finish, cut joints, leave - conc r us !
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Old 04-30-2013, 11:32 PM   #12
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Originally Posted by jomama45 View Post
Who said anything about it falling apart?? It's just dirty and sealer will help keep it clean and trap the release from wearing away.......
Am I not allowed to add additional comments about the topic?
I didn't say the patio was falling apart, but there's plenty of posts about concrete cracking, spalling, damaged.
The picture of my 12 year old concrete, it's never been cleaned, it looks clean with no sealers, coating or anything else applied, and this is where several dogs "go" every day, the most it gets is a hosing down.

Quote:
suspect the alley job was just a bad jnt pattern OR no joints placed at all - place, screed, finish, cut joints, leave - conc r us !
They put joints in but very far apart, they poured over poorly prepped ground, floated and left.

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Old 05-01-2013, 03:28 AM   #13
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wolfie, of COURZE you're allowed we just see the mainsticking point as your condescending attitude sounds as if it was a municipal job not all who work w/concrete are ' concretists ' - they still don't ' get it !

you, otoh, are fair, balanced, insightful, intelligent, articulate, handsome, & probably have a full head of hair

[ i need more sleep ]
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Old 05-01-2013, 07:42 AM   #14
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What do I do to my concrete patio


Good info here. The concrete is some sort of colored concrete, not sure if it was stamped but the finish is rough. Not real happy with the job they did. There is a big crack in it already. My neighbors drive is falling after 3 months but still looks brand new. I would rather seal it every year as opposed to using a high voc formula. I do want it to pop in color but nothing too high of a sheen
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Old 05-01-2013, 09:26 AM   #15
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Originally Posted by itsreallyconc View Post
sounds as if it was a municipal job not all who work w concrete are ' concretists ' - they still don't ' get it !
Nah, it was a general contractor who built a $900k shop addition, and did the concrete, I should take a pic of the concrete.
I only get condescending when I see what I feel is crappy work, corner cutting and shoddyness, then I'm on someone's case bigtime about it!

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