How Do You Prepare Concrete Floor For. Add a few squirts of dish soap and a capful of bleach. Apply the bleach solution with a mop.
Properly preparing the subsurface helps to limit the potential for cracks in the finished concrete slab. The surface is ready for priming when it feels like medium to light grit sandpaper and no residue or loose concrete remains. This can be done with a shop vacuum or large shop broom.
The preferred method for concrete surface preparation in most cases is grinding of all horizontal surfaces.
Shot-blasting is another good method for mechanically abrading concrete to receive a coating and is typically recommended for heavier duty epoxy mortars or urethane cement systems. Mop the concrete floor using a bleach solution. Several things must be done in order to obtain a successful project completion however such as securing a level spot for the slab leveling and squaring the form work and pouring and finishing the concrete in a timely manner. The concrete should be clean dry and free of dust dirt oil surface matter and form release.
