Which defect occurs if a paint is applied excessively thick?
A
Grinning
B
Running
C
Wrinkling
D
Flaking
Correct Answer: Wrinkling
Grinning occurs when under coat and final coat are of different colours. The opacity is insufficient and background colour is visible. Running occurs if the surface is too smooth; paint run off from such parts. Flaking occurs due to poor adhesion, leading to peeling off of paint.