Cause

• Insuffi cient dry/cure of undercoats before sanding and topcoating.

• Incorrect selection of the sanding orbit.

• Inapropiate choice of grit sandpaper.

• Paint layer too thin to cover and fi ll the sanding marks.

• Inadequate preparation of previous layers of paint.

Solution

• Follow the drying times as stated in the data sheet before sanding.

• Depending on the coat that needs sanding, choose the correct orbit for the sander. Use small orbits for fi nishing coats.

• Choose the correct grit sandpaper, taking into account the thickness of the paint that needs sanding.

• Sand the surface with the aim of applying only enough paint to cover or fi ll the marks.