What preparation is needed before installing epoxy flooring?

Proper preparation of the concrete surface is the most critical step before installing epoxy flooring, as it ensures strong adhesion and long-term durability. This involves thoroughly cleaning, repairing, and profiling the concrete to create an optimal bonding surface.

Begin by meticulously cleaning the floor to remove all dirt, debris, oil, grease, and any existing sealers or contaminants, which can be done with degreasers and power washing. Next, repair any cracks, holes, or uneven areas in the concrete using appropriate fillers, as epoxy will not "fix" an imperfect floor and surface irregularities will show through. Crucially, the concrete must be mechanically profiled, ideally through diamond grinding to achieve a CSP 2-3 profile, which opens the pores for the epoxy to bond properly, a method superior to acid etching. Finally, test the concrete for moisture levels; if readings are high, a moisture barrier is essential to prevent future blistering and delamination, and ensure the ambient temperature is between 15-32°C (60-90°F) with low humidity for proper curing. [cite: Proper preparation of the concrete surface is the most critical step before installing epoxy flooring, as it ensures strong adhesion and long-term durability. This involves thoroughly cleaning, repairing, and profiling the concrete to create an optimal bonding surface. [cite: 8, 12, 14, 16, 17, 24]

Begin by meticulously cleaning the floor to remove all dirt, debris, oil, grease, and any existing sealers or contaminants, which can be done with degreasers and power washing. [cite: 6, 10, 12, 17] Next, repair any cracks, holes, or uneven areas in the concrete using appropriate fillers, as epoxy will not "fix" an imperfect floor and surface irregularities will show through. [cite: 6, 8, 9, 12, 17] Crucially, the concrete must be mechanically profiled, ideally through diamond grinding to achieve a CSP 2-3 profile, which opens the pores for the epoxy to bond properly, a method superior to acid etching. [cite: 8, 10, 14, 16, 18, 24] Finally, test the concrete for moisture levels; if readings are high, a moisture barrier is essential to prevent future blistering and delamination, and ensure the ambient temperature is between 15-32°C (60-90°F) with low humidity for proper curing. [cite: