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Satoshi

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Discussion starter · #1 ·
Hi Everybody,

I am getting ready to do a custom home for a client that is wanting stained, polished concrete floors throughout their fully finished basement.

I haven’t decided whether I want to try to polish before or after framing the interior walls, but I believe that either way I’m going to want to go to extreme lengths to protect the floor from damage and stains.

I’m afraid with such green concrete that I can trap moisture in certain areas and cause problems with unevenness. Will it even out over time? Maybe, if it’s not severe, but with the price tag on this home I don’t want to leave the customer with something the “may even out”.

I’ve had issues with garage and basement slabs getting marks where materials were left on them, but it’s never really been much of an issue.

The polishing contractor didn’t have much input other than to absolutely not use tape on the slab. I’m thinking a paper product like ram board may be a better bet than a plastic product, though my main worry is PVC primer. Obviously I can tape the strips from the rolls to themselves, but I’d sure like some adherence in the field as well as the sides. The polishing contractor suggested just taping to the walls, but I’ve not had great luck with this option. I suppose I could run a nailer along all sides of the basement, but that’d be a pretty big pain.

Just trying to see if anyone has done enough of this to give me an idea of the best materials and methods, as well as how long they feel I should let the slab cure before protecting it.

Thanks.


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Trimaco makes a blue, barely adhesive foam kind of floor covering that I’ve used when I need maximum protection for really nice wood floors, I think its even supposed to let vapor out. The stuff is expensive but it might be the ticket for a situation like this.
 
If it were my slab, I'd cover it with a heavy geotextile fabric we use for under driveways. The heavier product will protect from scratches and impacts from dropped tools and such.

The fabric is permeable which should allow the curing of the concrete, the downside is it's permeable and will let liquids (like pvc primer) through.
 
Had a similar situation.
Stopped all structural work for 3 weeks; then, covered concrete with 1/2" ply and vinyl backed canvas tarps.

Threatened all crews with only allowing Bach for jobsite music !

Concrete stayed clean and unmarred.

Stained concrete, 4 coats of acrylic.. Beee-you-tee-us results.
 
I think this is the stuff I’ve been using:
 
Discussion starter · #9 ·
Thanks to all that responded. Some helpful stuff here. The 1/2” ply and tarps would definitely provide max protection, but I think I’d prefer the corvette that I could buy instead with ply where it is.

Looking in to the blue stuff, that might be a good option. Thanks again for the input.

Does anyone have an opinion on how long I should let it cure before I protect it? I’m thinking I might set up some sprinklers to continuously soak it for a few days, then let it sit for a couple and protect it. Probably still a lot of moisture in the slab at that point but at least it should be uniform. If that’s the case I’d likely go with a very heavy breathable type product.


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