Why Surface Grinding & Scarifying Are Essential Before Flooring Works

Why Surface Grinding & Scarifying Are Essential Before Flooring Works

Many clients believe that if the floor ''looks flat,'' it’s ready for coating.

But in reality, 90% of flooring failures come from poor surface preparation, not bad materials.

Grinding and scarifying are done to remove laitance, dust, and oil, and to open the concrete’s pores so the primer can fully penetrate and bond.

Skipping this step often leads to bubbling, peeling, hollow sounds, or efflorescence — problems that cost several times more to repair later.

Properly prepared concrete can increase adhesion strength by over 3 times,

which is why all international standards (ASTM / ACI) require mechanical surface profiling before epoxy, PU, or microcement applications.

Conclusion:

A strong floor doesn’t start with the coating — it starts with the surface.

Preparation determines performance.