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Painting Problems and Solutions

What is it?
  • Paint flaking and delaminating from pre cast concrete substrates.
Possible Causes
  • Mould release agents are sometimes applied to facilitate the release of shuttering. These release agents can be oily in nature restricting paint adhesion.
  • Not removing laitance which is a powdery weak alkaline layer which can compromise coating adhesion.
  • Dirt, dust and loose deposits on substrate prior to painting.
  • Poor quality paint with inferior adhesion properties.
How Can I Fix This Problem
  • Remove release agents by etching, sandblasting or by high pressure power washing
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