Does mixing self-leveling mortar affect the final result? Absolutely — because mixing matters. Achieving a smooth, even, and durable floor starts with proper mixing. If the mix is too thick, it won’t flow correctly and may leave ridges. Too thin, and it can weaken and crack after curing. Poor mixing can also leave dry lumps that cause surface imperfections. The key is getting the right consistency for optimal flow and leveling. In Part 3 of our Build It Right series on self-leveling mortar, Ar.