1、 Shallow scratch: due to improper friction and daily care, there are slight scratches on the paint surface, but the primer is not exposed. This kind of scratch is more obvious in the sun. Usually removed by polishing.

二、褪色：大氣中的油煙和污染物是造成車漆變色、褪色的主要原因。褪色與氧化不同，發生褪色時，車漆會出現不均勻的色差。中、輕度的褪色可用研磨、拋光治理，嚴重時重新噴漆。

2、 Fading: oil fume and pollutants in the atmosphere are the main reasons for the discoloration and fading of car paint. Fading is different from oxidation. When fading occurs, the paint will have uneven color difference. Moderate and mild discoloration can be treated by grinding and polishing, and repaint in case of serious discoloration.

三、水痕紋：水痕紋是水滴蒸發后留下的痕跡，呈環狀。氧化、常用洗滌靈清洗的車容易染上水痕。

3、 Water mark: water mark is the mark left by the evaporation of water droplets, which is circular. Cars that are oxidized and commonly cleaned with detergent are easy to get water marks.

四、漆面氧化：在太陽紫外線的照射下，漆膜會不斷向空氣中蒸發油份以達到保護自身的作用，長時間就會導致漆面油分的過分散失。漆面的亮度都大打折扣，使漆面慢慢發白，形成氧化層，縮短了車漆的壽命，氧化嚴重的話可以通過研磨和拋光來處理。

4、 Paint oxidation: under the sun's ultraviolet radiation, the paint film will continuously evaporate oil into the air to protect itself, which will lead to excessive loss of paint oil for a long time. The brightness of the paint is greatly reduced, which makes the paint white slowly and forms an oxide layer, which shortens the service life of the car paint. If the oxidation is serious, it can be treated by grinding and polishing.

五、蝕痕：蝕痕是面狀磨蝕。昆蟲、鳥糞、樹汁、焦油、瀝青都有可能引起的蝕痕。輕微的蝕痕可用研磨拋光。

5、 Etch marks: etch marks are surface abrasion. Insects, bird droppings, tree sap, tar and asphalt may cause corrosion marks. Slight corrosion marks can be solved by grinding and polishing.