self leveling how thick can you go

[harrybarry]

had a look at the stickies and it seems SLC can only go to 3mm deep, i have an old concrete floor which meets the new and i would say its about 20mm out over about a metre from were they meet. i am going to lay riven slate 600mm x 300mm tiles over it how level does it have to be.
does the floor need more than SLC.

 

[wap]

ultra slc will go up to 50mm in one go. check out the instarmac website for full spec. i would get the floor as level as possible before laying any covering.

 

[harrybarry]

cheers thanks for that