x

Painting Problems and Solutions

What is it?
  • Staining and discoloration of the topcoat by the migration of volatile components from the underlying coat. In this particular example it is Creosote.
Possible Causes
  • The coloured ingredients in the previous coat are dissolved by the solvents of the subsequent coat and migrate to the top leading to staining and discoloration.
  • Over coating coal tar containing paints, bitumen, asphalt or Creosote with white or coloured topcoat will result in the 1st coat bleeding through the subsequent coating.
How Can I Fix This Problem
  • If possible remove all of the coatings to bare substrate. Best results are generally achievable in the case of Creosote if it has weathered well to a sooty grey colour.
  • Removing oil, wax or tar like substances from porous substrates are very difficult to achieve and it might be advisable to continue with the original coating.
Find your nearest store