The Core Problem: Why Painting Over Concrete Spalling Fails.

The Failure of Cosmetic Patches

Concrete spalling (often called "concrete cancer") is not a surface flaw; it's a symptom of internal structural degradation. It occurs when moisture and carbon dioxide penetrate the concrete, causing the reinforcing steel (rebar) to rust and expand, exerting immense pressure that pops the concrete off the surface.

Painting over this defect or using non-structural plaster patches only provides a temporary, cosmetic fix. The underlying corrosion process continues, and the patched area will fail again, often within 12 to 18 months, leading to costly recurring repairs.

The Four-Phase Structural Solution

A permanent repair must follow a strict engineering protocol that addresses the steel corrosion and restores the concrete's alkalinity. Our four-phase process includes:

• Defect removal and rebar cleaning to a bright metal finish.
• Passivation of the rebar (applying an anti-corrosive coating) to halt the rusting process.
• Application of polymer-modified structural mortar to replace the spalled concrete.
• Final application of a breathable, elastomeric coating to prevent future moisture ingress.