1. SURFACE REPAIR
HOLES : You should repair with hydraulic cement. We recommend use “Rapid Set” products
CRACKS & CONTROL JOINTS: Repair and fill them with an appropriated epoxy filler.
CONTRUCTION JOINTS & COLD JOINTS: Must be honored. We recommend use appropriate metal dividers.
2. CONCRETE GRINDING
Grind the concrete floor with metal diamond #30/40 to profile the concrete and clean it for any glue, paint, thin set and residual.
Vacuum the area and clean it with alcohol
For surfaces that require leveling or extensive repair more than 1/4” thickness, we recommend to use self-leveling ULTRAPLAN underlayment or similar for interior floors. And for exterior floor MAPECEM 102 or similar. Read specs for the right priming, mixing and installation