Clouding / Mottle

Clouding / Mottle

 

 

 

 

Cause:

• Disorientation of aluminium flakes due to:

• Incorrect spraying viscosity, spraying technique, flash off times or spraying room temperature.

• Defective spraygun nozzle, incorrect spraying pressure.

• Wrong thinners used.

 

Prevention:

• Adjust spraying viscosity accurately using a viscosity cup or mixing stick.

• Spray with the spraygun parallel to the object.

• Use the correct spray gun and nozzle for the coating.

• Use only the thinners recommended by Protec.

• Follow the Protec application recommendation in the technical data sheets.

 

Rectification:

• Once thoroughly dry sand with P1000-P2000 grit and respray job.

• If needed apply a set up coat on the final pass before clearing.