1、Clouding ： the clear lacquer and dilute come out result in the could&mist opacity phenomena 。
2、Thickening： while the paint store in the tank, the dilute come out result in the viscosity increase phenomena。
3、Flocculation： in the color lacquer or the dispersoid to form collection phenomena。
4、Gelling：the paint material from the liquid to solid or half solid.。
5、Skinning：in the paint tank, the liquid surface form the coating film because of chemical reaction。
6、Settling： the paint store in the tank, the components fall down at the bottom of the tank。

7、Caking：the pigment or physical pigment particles in the color paint settle into block and difficult to subdivide。
8、Seedy：some granule exist during the paint store in the tank。
9、Pig shin：during the color lacquer store, the seedy paint make the grading become worse.

10、Floating：various different pigment mix into color lacquer store or drying, one or several material peak or float and appear the color strips and stain。
11、Flooding： much worse than floating。
12、Bubbling： during the paint processing operation or the solvent smoke air exist, this type of bubble can be disappeared or exist for ever 。
13、Pin-hloes： the small hole morbidity exist in the coating film 。
14、Wrinkling：the film appear regular small wave goffer, it will go through part or full coating thickness.  。
15、Orange skin：the coating film form the orange skill state。
16、Blushing：during the paint drying, the coating film appear ice-cream phenomena有。
17、Curtains：while the pain coating at the vertical panel, the paint curtain or the wrong operation or too thick coating make the wet coating fall down.
18、Brush mark：after brushing, there is remark leave on the coating. Because the paint material dry fast, too high viscosity, brush is too hard and wrong brushing operation make the film is impossible level.

19、Craterring：after the film dry, some circular hole still stay.
20、Fat edge：paint deposit at the coating edge make the coating edge thick.

21、Lifting：coating at some paint or different paint on the basic of dry film, during the coating process or drying period to make the drying film intenerate, hunch or break off. 
22、Bleeding：the color chemical come from the basic panel, spread and come to the top, which would make the coating film change the color.
23、Bitty appearance：after the coating film dry, whole or some parts surface distribute different abnormity granule。
24、Dirt retention：the dry film surface stay the dust 。