Adding a layer of self-leveling compound to your concrete adds an extra day to your flooring job, but it reduces the chances of problems with your flooring later. We are using sika L125 here. Don’t forget to use a primer first. A primer is important to create a base and ensure good bonding of upper floor layers. It also protects the substrate against moisture from leveling compounds or adhesives above. | Mike Holmes

How To Install Floor Levelling Compound on Concrete