艳妇荡女欲乱双飞两中年熟妇_青草青草久热国产精品_国产精品一区二区无线_麻豆国产人妻欲求不满_国产精品秘入口18禁麻豆免会员

Why does car paint fall off

2019-08-23 653

The problem of car paint falling off refers to the loss of adhesion to the substrate due to the cracking of the paint after the car is painted, and under the effect of external forces, polyurethane paint falls off in small pieces or on a large scale. Falling off can also be divided into several types: small pieces falling off, large videos falling off, and a single piece falling off.

Today, the editor will give everyone a detailed introduction on how to prevent car paint from falling off. So, what caused the problem of falling off?

Reason 1: Excessive smoothness on the surface of the coating can cause the problem of polyurethane paint falling off.

Reason 2: The metal surface treatment of the substrate before paint construction is not very good, containing oil stains, wax, water, dust, chemicals, etc., or the metal surface treatment is not immediately followed by construction.

Reason three: Spraying paint or topcoat before the bottom layer is completely dry can easily cause a problem of falling off.

Reason 4: Poor selection of topcoat, high strength of topcoat, and slippery surface all result in the loss of necessary adhesion between the topcoat and the center of the paint, resulting in the problem of falling off.

汽車修補(bǔ)漆

What methods can prevent the problem of paint falling off?

1、 Before construction, the surface layer of the substrate should be thoroughly treated using appropriate methods and any waste left during cleaning should be eliminated.

2、 Choose a paint with strong adhesion and wettability for the topcoat.

3、 If the surface of the substrate is too smooth and clean, appropriate treatment methods should be used before engineering construction.

4、 Wait until the bottom layer of paint is completely dry before spraying paint and finishing coat.

5、 Strictly follow the engineering construction statistical data provided by the paint manufacturer for engineering construction.

Article source: Automotive repair paint http://www.zjlicheng.com


日韩人妻无码一区二区三区久久99| 欧美极品少妇无套实战| 粉嫩小泬无遮挡久久久久久| 99热这里有精品| 成人网站网址导航| 97影院理论午夜伦不卡| 热久久美女精品天天吊色| 亚洲精品乱码久久久久久蜜桃图片| 久久精品国产99国产精2020丨 | 无遮挡aaaaa大片免费看| 亚洲国产精品无码中文字| 欧美大成色www永久网站婷| 日本熟妇人妻xxxxx视频| 日出水了特别黄的视频| 国产精品久久久福利| 亚洲av永久免费精品| 怡红院av一区二区三区| 日本理伦片午夜理伦片| 免费无码黄动漫在线观看| 亚洲av日韩av无码av| 97无码免费人妻超级碰碰夜夜| 97在线视频人妻无码| 日本免费一区二区观看| 人妻少妇伦在线麻豆m电影| 国产乱子伦精品无码专区| 國产一二三内射在线看片| 成人熟妇无套内射视频| 99精品久久99久久久久胖女人| 一本一道av中文字幕无码| 久久国产色av免费观看| 国产一区二区内射最近人| 骚片av蜜桃精品一区| 真人性生交免费视频| 扒开双腿吃奶呻吟做受视频| 97人妻无码一区二区精品免费| 亚洲欧美日韩久久精品| 精品国产一区二区三区四区阿崩| 欧美真人做爰在线观看| 久久夜色精品国产亚洲| 日本二区三区视频免费观看| 5x性社区免费视频播|