1) I have a basement floor that is completely plastered from paint. You can see the concrete, what should be used to level it? It turned out that it's not even.
2) And how long do you have to wait for it to cure before you can place things on it?

I'm planning to put gym equipment in the room, placing a breathable mat before the machines.
 
Self-leveling compound
 
F fribygg said:
Self-leveling compound
But how long before it is fully cured?
 
It depends on the product you're using, there are ones that dry quite quickly.
 
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A Anne G said:
But how long until it has cured completely?
You can self-level tonight and lay the floor tomorrow night.
 
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MathiasS MathiasS said:
It depends on the product you are using, some dry quite quickly.
Need a diffusion-open mortar because we are talking about a cellar floor.
 
P
A Anne G said:
Need a diffusion-open plaster because we're talking about a basement floor.
I'll give you a tip. Every self-leveling compound supplier has a website. Go there and search, and you will soon find a suitable compound. Suppliers include Finja, Kiilto, Mapei, Bostik.

There is also a search engine called Google, where you can search for "diffusion-open self-leveling compound" or "uninsulated basement self-leveling compound," and you will get product suggestions.
 
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A Anne G said:
Need a diffusion-open mortar because we're talking basement floors
It shouldn't be a problem to find. But, I'm not going to give a product recommendation, but look for fast self-leveling compounds, every manufacturer has them because they are needed for renovations where speed is essential.
 
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Best answer

I used this in the basement part of the house: https://www.hornbach.se/p/flytspackel-finja-265-fr-20kg/10226289/

Drying time 1 cm per day, but if you lay something like needle felt carpet that "breathes," you can lay the carpet earlier too, and it depends on how thick you need it.

If you haven't self-leveled before, check out some YouTube videos and divide the floor into sections so you use two bags at a time. If you can get a couple of friends to mix and carry, you can do the whole floor at once (with, for example, 6 buckets in rotation). Mix as loose as possible and keep in mind that it splatters a lot, so cover delicate items and cover walls with plastic if you’re not planning to repaint.

Also, remember that self-leveling compound isn't particularly hard as a surface, so a dumbbell or barbell can easily make dents in it.
 
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If you are using it as a finished surface, you should use industrial putty. Self-leveling compound is intended to be covered with a surface layer. I understand that you are rather going to lay in a loose carpet?

As far as I know, all floor putties are diffusion-open.
 
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L Liljeros said:
If you want it as a finished surface, you should use industrial self-leveling compound. Regular leveling compound is meant to be covered with a surface layer. I understand you are planning to install a loose carpet instead?

As far as I know, all floor leveling compounds are vapor permeable.
There are some fiber-reinforced compounds that are not vapor permeable (or at least not indicated as such).

If you lay a wall-to-wall carpet, like a needle felt carpet, and then gym mats for barbells/dumbbells, it works well with regular leveling compound... (however, preferably, the gym mats should not be excessively large to avoid trapping moisture underneath them)
 
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If it is to be used as a gym and not have gym mats e.g. 20-25mm, I recommend industrial leveling compound, a common fiber leveling compound is intended as a subfloor with a new floor of tiles, carpet or parquet,

You can find the most common ones at e.g. Beijer hornbach bauhouse, finja Weber combimix mct kilto
 
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anders07 anders07 said:
There are some fiber-reinforced fillers that are not diffusion-open (or at least not stated to be so).

If you lay a wall-to-wall carpet, like a needle-punched mat, and then gym mats for barbells/dumbbells, regular self-leveling compound works well... (however, gym mats should preferably not be overly large to avoid trapping moisture underneath them)
No, there are certainly variations for specific requirements, which I haven't encountered myself. Generally, what you buy at typical building supply stores is open, although it's of course good to double-check.

I understood that needle-punched mats would be placed locally under the machines, but I might have misunderstood the OP. If no other protection like rubber mats or similar is used, self-leveling compound is probably not hard enough for a dumbbell that lands incorrectly. Now, it might not matter too much if there's a mark under the needle-punched mat.
 
Den ofrivillige klåparen said:
I will give you a tip. Every supplier of leveling compound has a website. Go there and search, and you will soon find a suitable compound. Suppliers include Finja, Kiilto, Mapei, Bostik.

There is also a search engine called Google, where you can, for example, search for "breathable leveling compound" or "uninsulated basement leveling compound," and you will get product suggestions.
anders07 anders07 said:
There are some fiber-reinforced compounds that are not breathable (or at least not specified as such.)

If you lay a wall-to-wall carpet, like a needle felt carpet, and then gym mats for barbells/dumbbells, regular leveling compound works fine... (however, gym mats should ideally not be excessively large to avoid trapping moisture underneath them)
Exactly why would some brands need to specify that they are breathable if all leveling compounds were? I have a problem with the walking machine that weighs about 80 kilos; I wouldn't like the floor under the needle felt carpet that is supposed to cover the entire floor to be too soft.
 
L Liljeros said:
No, there are certainly variations for specific requirements, nothing I've encountered myself. Overall, what you buy in regular hardware stores is usually open, though of course, it's good to double-check.

I understood that needle felt carpets were to be placed locally under the machines but may have misunderstood the OP. If no other protection like a rubber mat is used, then self-leveling compound might not be hard enough for a dumbbell that lands the wrong way. Now, it might not matter much if there is a mark under the needle felt mat.
The needle felt is supposed to cover the entire room, the problem is a treadmill that weighs about 80kg, it also has a rubber mat underneath.
 
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