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Unread 11-04-2020, 11:34 AM   #1
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Naked Rapidset leveler

I'm going to use some Rapidset Concrete Leveler obtained at the big orange giant to flatten a low spot in the existing concrete on the side of my house to make a better surface under a shed I'm building.
The directions for this product state: "CONCRETE LEVELER may be used as a temporary work surface for foot traffic in 2 to 4 hours and rubber wheel traffic in 24 hours at 70°F (21°C). CONCRETE LEVELER is not designed to be a permanent finished floor surface. CONCRETE LEVELER may be used as
an underlayment in moisture control systems."

I was hoping to just pour the stuff out, let it harden for a few days, then build the shed on top. But this seems to suggest that I need to put something else over it first.

What sayeth the oracles of the John Bridge forum? I feel like they are just trying to say you shouldn't use this as a bare slab in situations where you're going to have regular foot traffic. Wouldn't it be OK in an area that is likely to get zero foot traffic? If I do need to put something over it, could I use some sort of paint or epoxy? Tile is right out as it would be an insult to porcelain everywhere to tile the surface under my shed.
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Unread 11-04-2020, 12:20 PM   #2
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It's going to be under the shed, but not the shed floor?
If I recall correctly my memory is excellent, but my ability to access it is intermittent.
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Unread 11-04-2020, 12:25 PM   #3
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If it requires a primer per the instructions, ensure you use that.

The stuff is not designed as a wear surface...it is designed to be covered with one, whether that's a glue down or floating wood, sheet product, or tile and maybe carpeting.

Also, keep in mind that the stuff doesn't actually self-level without some help.

I haven't looked at a concrete topper to learn how deep that can get. If that can get deep enough to help level your slab, that is designed as a finished surface.
Jim DeBruycker
Not a pro, multiple Schluter Workshops (Schluterville and 2013 and 2014 at Schluter Headquarters), Mapei Training 2014, Laticrete Workshop 2014, Custom Building Products Workshop 2015, and Longtime Forum Participant.
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Unread 11-04-2020, 01:59 PM   #4
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Right. This shed is sitting up on posts slightly off the ground.
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