I have a floor down in the laundry room in the basement that has a really steep slope, and I want to even out the floor and create 2 local slopes by each floor drain instead of having the entire floor sloping towards the drains.

In the pictures, you can see the long level placed from the part by the door that is at the "correct" level to a concrete ledge cast for washing machines. I don't want to remove this and was planning to ensure the self-leveling compound goes a few mm over it.

But now to the problem, when I read about self-leveling compounds, the minimum thickness is 4mm, isn't there any with, for example, a minimum thickness of 1mm? I would prefer not to build up any significant heights, such as at the doors where the floor is already at a good height, and I also don’t want to chip away the concrete surface for the washing machine as it is crazily reinforced and difficult to chip.

What else can be done to fill the surface and ensure a maximum 1mm height where the floor is currently flat and good, or is it just to accept the situation and raise with 4mm?

A long level placed on an uneven concrete basement floor in a laundry room, showing the slope issue being addressed in renovations. A level tool placed on a basement laundry room floor showing slope discrepancy between door frame and a raised concrete base for washing machines.
 
What will you have on the floor then?
Tiles, carpet, paint?
I have helped leveling compound down to 0mm with a steel trowel, but then it doesn't become self-leveling (I think it was byggmax 4mm).
Otherwise, you could use hand trowel/sanding kit on the edge?
 
Bag of Hey'di Flow Turbo self-leveling compound, gray 0-15mm, 20kg, displayed on Bolist website with eco-label.
Use a different spackel on/around?
 
Tiles will be the surface layer moving forward, possibly paint to start with.

Thanks for the tip about the other filler, will fill with it after a first pour around the "betongklacken".
 
With tiles, I had hand-applied adhesive on the elevation.
Edit: Paint before, I don't know, then you have to sand off part of the paint beforehand.
 
David-O David-O said:
With tiles, I would have hand-applied adhesive on the elevation.
Edit: Painting before, I'm not sure, then you would have to sand off part of the paint first.
So just level out the large drop with leveling compound and then adjust the final part with adhesive when laying the tiles?
 
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David-O
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Grillen Grillen said:
So just level the large slope with self-leveling compound and then adjust the final part with adhesive when laying the tiles?
Exactly
 
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