There are many surface finishes that can be applied to smooth finished concrete. What considerations should be taken into account before application?

There are many surface finishes that can be applied to smooth finished concrete. What considerations should be taken into account before application?

• A. Depends on finish to be applied.
• B. Cure time and moisture content are the only factors
• C. Type of cement determines the finish
• D. Environmental conditions only

Answer: (A)

Before applying any surface finish to smooth finished concrete, the preparation and conditions must be matched to the finish you plan to use. Different finishes have different adhesion and cure requirements, so there isn’t a single universal checklist. For epoxy or polyurethane coatings, you typically need a clean, dry surface with the right roughness, and you must stay within specified temperature, humidity, and moisture limits; staining or sealing products have their own thresholds for moisture and porosity but still require a clean, dust-free surface and proper environmental conditions. Contaminants, curing compounds, or excess moisture can ruin adhesion, so manufacturer guidelines for substrate preparation, cure time, and conditions are essential. In short, the key factor is which finish is going on—the preparation, moisture handling, cure timing, and environmental ranges all depend on that choice.

Before applying any surface finish to smooth finished concrete, the preparation and conditions must be matched to the finish you plan to use. Different finishes have different adhesion and cure requirements, so there isn’t a single universal checklist. For epoxy or polyurethane coatings, you typically need a clean, dry surface with the right roughness, and you must stay within specified temperature, humidity, and moisture limits; staining or sealing products have their own thresholds for moisture and porosity but still require a clean, dust-free surface and proper environmental conditions. Contaminants, curing compounds, or excess moisture can ruin adhesion, so manufacturer guidelines for substrate preparation, cure time, and conditions are essential. In short, the key factor is which finish is going on—the preparation, moisture handling, cure timing, and environmental ranges all depend on that choice.