Concrete garage floor - Self level + epoxy, experiences?

[TheLoraxxZeus]

Afternoon all, hopefully someone can give me some insight into this becuase after looking at many YouTube videos it seems "too good to be true".

I've got a small 3m x 5.5m typical newbuild garage with a dusty concrete floor that is not level overall but has no significant highs or lows but instead it has a steady gradient (although quite aggressive) from the back right to the front left. I've not measured the drop due to it being across the entire floor but it's not insignificant.

I have a 1960s car I want to park in here because it suffered last winter outside (it leaks) so I've cleared all the crap out and I am considering doing the floor first.

Am I going to be able to just clean the concrete as much best I can, seal it, then apply a self level epoxy? Or will I have to self level it with some base first? All the videos make it look easy, just put it out and brush/push it into the corners and work towards your exit. Am I missing something?

 

[TheLoraxxZeus]

I've got some additional context to add here.

The drop from the far end to the door over a 5.5m distance is around 60-70mm which is roughly what you would do for something like a patio for drainage right? I don't need that in an indoor garage so I would like to level that out more. I have a feel that is going to be quite a substantial amount of material.

Looking at something like Resincoat (first result on Google) this number looks very very costly

1m2 at 10mm thickness will require 17kg of dry powder.

With 16.5m2 to cover I'm looking at around £650 in material and that wouldn't even put a dent in that drop, even if I want to remove 20-30mm I would be looking to double that number.

This sounds wrong or is this the part I'm missing about this being easy? lol.

Even if kept the drop, lets assume I want to take 10mm off the drop across the board that's still in the region of 300-400 and then I have the epoxy coating on top which is also very expensive.

Thoughts? My goal here is to:

1. Stop dust, I have a mechanic fan in the car and it kicks up a ton of dust no matter how clean the floor looks
2. It's old so it develops leaks and having big stained patches on the concrete not only looks bad but it also smells
3. Nicer to walk on (with the limited space I have...)
4. The garage will be dual purpose, I require a clean and usable space to do engine and transmission work. A dusty floor is not going to cut it

At the moment I have plywood down, it sucks and still gets dusty.

 

[endecotp]

I've got a small 3m x 5.5m typical newbuild garage with a dusty concrete floor that is not level overall but has no significant highs or lows but instead it has a steady gradient (although quite aggressive) from the back right to the front left.

Garage floors are supposed to slope, aren't they? So that water (and petrol?) drain away rather than pooling. I guess it's probably a building regs requirement?

 

[jj4091]

Completely agree with endecopt. Just paint it with floor paint and let it breathe