Formation of chalk-like dust on the surface of the paint.


  • Use of low quality paint
  • Use of paint unsuitable for external surfaces


  • With a brush, remove as much of the dust as you can.
  • Scrub the surface and clean it.
  • After drying check if there is still dust and if so then use ER-LAC’s high quality primer that is suitable for your surface.
  • Then repaint the surface with one of ER-LAC’s paints, which are of high quality and will not present chalking problems.