Adhesion Loss, Clearcoat
Description: Loss of adhesion between the basecoat and the clearcoat. This defect results in separation of the clearcoat from the basecoat, leading to an unsightly finish.
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ORIGIN AND POTENTIAL CAUSES
» Excessive film thickness of basecoat
» Intermediate and final flash-off
times of the basecoat too short
» Wrong mixing ratio for clearcoat and
activator -
PREVENTION TECHNIQUES
» Allow proper flash-off time of coats of
basecoat and before applying clearcoat
» Apply proper film thicknesses of all
layers
» Mix clearcoat correctly
» Follow system recommendations per
Technical Data Sheet(s) -
REMEDY
» Sand, isolate if necessary, and refinish