Flaking From Concrete

Description

Paint flaking and delaminating from the concrete floor.

Possible diagnosis

  • Incorrect paint for traffic conditions or contact with chemicals like oil, petrol, detergents etc.
  • The incorrect use of an interior epoxy in outdoor UV conditions.
  • Poor concrete substrate integrity.
  • Moisture ingress due to inadequate moisture barrier under floor.
  • Painting before the floor has properly dried.
  • Failure to remove surface contaminants such as dust, dirt, oil etc. 

Remedy

  • Pay attention to all of the above. Follow application instructions of NEO Floor Paint or NEO Epoxy Floor Paint.
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Flaking From Pre-cast Concrete

Description

Paint flaking and delaminating from pre-cast concrete substrates.

Possible diagnosis

  • Mold release agents are sometimes applied to reduce shattering. These release agents can be oily in nature restricting paint adhesion.
  • Failure to remove laitance (powdery weak alkaline layer) which can compromise coating adhesion.
  • Dirt, dust and lose deposits on the substrate prior to painting.
  • Poor quality paint with inferior adhesion properties.

Remedy

  • Remove release agents by etching, sandblasting or by high-pressure power washing.
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