For polishing, many car owners have heard about it, but for those who don't know the car, there are many related questions and they are easy to be confused. Then we will answer the question mentioned by many netizens: must the car be polished after painting? Is it OK not to polish the car after painting?

一般汽車表面噴過油漆之后，可能會出現粗粒、流痕、反白、砂紙痕、橘皮等漆膜表面的細小缺陷，為了彌補這些缺陷，通常在噴涂后使用汽車拋光研磨劑，來進行研磨拋光處理，這樣可以提高漆膜的鏡面效果，達到平滑、光亮、艷麗的要求。所以說汽車噴漆后還是有必要做一下拋光的。

Generally, after spraying paint on the surface of automobile, there may be small defects on the surface of paint film, such as coarse grain, flow mark, whiteness, sandpaper mark, orange peel, etc. in order to make up for these defects, automobile polishing abrasives are usually used after spraying, so as to improve the mirror effect of the paint film and achieve the requirements of smooth, bright and gorgeous. So it is necessary to polish the car after painting.

拋光的利與弊相信很多車主都有討論過，事實上頻繁的拋光會讓車漆越拋越薄，甚至有可能出現拋穿的可能，所以業內人士提醒，拋光在一輛車的一生中，更好不要超過5次。

The advantages and disadvantages of polishing are believed to have been discussed by many car owners. In fact, frequent polishing will make the paint thinner and thinner, and may even cause the possibility of polishing. Therefore, insiders remind that it is better not to polish more than five times in the life of a car.

那么什么情況可以起拋光呢？首先，新車不需要拋光。一般使用了3-4年的汽車，車漆已經失去了新車的光澤，而且多了很多細微劃痕，那么這時可以通過拋光的方式來使車漆煥然一新。

So what can be polished? First of all, new cars don't need polishing. Generally used for 3-4 years, the car paint has lost the luster of the new car, and there are many small scratches, then you can polish the car paint to a new look.

拋光必須謹記步驟，首先要清洗整輛車，避免顆粒灰塵在拋光中造成新劃痕。接著在拋光前用水砂紙對車漆進行打磨，注意不能磨穿漆層，輕輕打磨即可。

The polishing process must be kept in mind. First of all, the whole vehicle should be cleaned to avoid new scratches caused by particle dust during polishing. Then polish the car paint with sandpaper before polishing. Pay attention not to wear through the paint layer, but to polish it gently.

然后采用研磨機加上研磨膏進行拋光研磨，這個步驟非常關鍵，需要經驗豐富的師傅來操作。研磨拋光結束后，擦凈車身，立即用光油蠟對拋光部位進行擦拭，使車漆恢復光亮。

Then use grinding machine and grinding paste to polish and grind. This step is very important and requires experienced master to operate. After grinding and polishing, wipe the car body, and immediately wipe the polished parts with polish wax to restore the brightness of the paint.