» Tack cloth was not used before applying the clearcoat
» Basecoat and clearcoat are incompatible
» Clearcoat was applied with insufficient flash-off of the basecoat, or was applied too wet
» Air pressure was too high
» Wrong thinner
» A coat of basecoat was too dry when the next was applied

» Use tack cloth, if possible
» Use recommended products only, with recommended air pressure
» Allow proper flash-off time of the basecoat before applying the clear
» Use recommended thinner/reducer
» Follow product recommendations in the Technical Data Sheets.

» Sanding and refinishing are necessary if the defect is severe.