What are CSP Ratings?

For proper bonding of overlays and coatings, it is important that a concrete surface have the correct Concrete Surface Profile or CSP. A CSP rating is a standardized rating that allows you to visually determine the concrete surface roughness.
The most important step in creating a quality floor is the preparation. And for the proper bonding of any coating or overlay, you need to properly prepare the floor with the proper concrete surface profile. But what is a concrete surface profile? A concrete surface profile, known as a CSP, is a standardized measure for the ‘roughness’ of a surface that is defined by the International Concrete Repair Institute (ICRI). A very rough surface will have a high CSP number, such as CSP 9. A very smooth surface with almost no preparation at all will be a CSP 1.

  • CSP 2
  • CSP 3

This rating can be achieved with our tooling that carries a 30/40 Grit rating.
For coating applications from 2 to 3 mil thickness, the surface profile should be a CSP 2.

This rating can be achieved with our tooling that carries a 16 Grit rating.
For coating applications from 4 to 5 mil thickness, the surface profile should be a CSP 3.