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Painting Problems and Solutions

What is it?
  • Retraction of the new coating from the surface leaving voids. In this particular case the previous coat consist of a solvent based wax wood preservative over coated with a white water based emulsion coating.
Possible Causes
  • Oil, grease, wax, moisture and or silicon contamination or coatings on the surface not permitting the surface to be wetted by the subsequent coating.
  • Very smooth or polished surfaces which does not provide for a mechanical key
How Can I Fix This Problem
  • Remove oil, grease, wax, moisture and / or silicon contamination.
  • This is often very difficult and costly to achieve with coal tar coatings on porous substrates like wood and it might be better to continue with the original coating/ treatment.
  • We do that the nature of the original coat can be difficult to ascertain, and thus finding an appropriate solution might require some small scale experimentation.
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