Cracking or flaking is the splitting of a dry paint film. This is a problem that needs fixing as it can lead to complete failure of the paint. Initially, the problem appears as a hairline crack, before evolving to flaking of paint chips.

Possible Cause

Cracking and flaking is caused by:

  • Use of a lower quality paint that has inadequate adhesion and flexibility
  • Over thinning the paint or spreading it too thin
  • Poor surface preparation, especially when the paint is applied to bare timber without priming
  • Painting under hot or windy conditions that make water-based paints dry too fast

 

Solution

If caught early, it may be possible to correct superficial cracking by simply removing the loose or flaking paint with a scraper or wire brush, sanding to feather the edges, perform necessary repairs and spot- prime any bare spots before top coat application. However, if the cracking extends to the substrate, remove all affected paint by scraping, sanding and/or using a heat gun prior to painting.


More problem solving advice

Mould

If you’ve noticed black, grey or brown areas on your painted surface, chances are you’re dealing with a mould problem.  For each problem you’ll find a guide to identifying it, its causes and solutions.

Wrinkling

We all know the sun can give us wrinkles, but did you know it can do the same to your paint? Wrinkling is a rough, crinkled paint surface that occurs when paint forms a 'skin'.