Brown or yellow sticky runs (surfactant bleeding)

 

Runs which appear on a dry coating surface.

Runs which appear on a dry coating surface. This can last for several months. Water-based products contain surfactants which can be brought up to the surface in extreme humidity conditions.

Causes

  1. Surface exposed to high humidity.
  2. Cold temperature while the coating dries up.
  3. Surface protected from rain.
  4. Dew on coating not long after it dried out.

Solutions

  1. This problem usually will disappear with time. Clean the surface with an active cleaner with oxygen Polyprep 71-135 or 771-136, every time new runs appear.
  2. This problem usually will disappear with time. Clean the surface with an active cleaner with oxygen Polyprep 71-135 or 771-136 every time new runs appear.
  3. This problem usually will disappear with time. Clean the surface with an active cleaner with oxygen Polyprep 71-135 or 771-136 every time new runs appear.
  4. This problem usually will disappear with time. Clean the surface with an active cleaner with oxygen Polyprep 71-135 or 771-136 every time new runs appear.
  • Take care of humidity problem.
  • For severe cases, use a solvent-based product.