夜夜国自一区I色播激情I少妇大战28厘米黑人I一级片网址I日韩无码A片I国产麻豆交换夫妇I99re只有精品I6080午夜福利视频在线观看免费I国产成人超碰人人澡人人澡I精品久久无码中文字幕I奇米网一区I伊人A片I又白又嫩毛又多15PIjzzijzzij亚洲成熟少妇在线播放I无码人妻一区二区三区线花季软件I成人视频在线免费观看I小视频网页在线播放I成人精品水蜜桃

After spraying the top coat with atomic ash, some traces will appear on the film surface, and even the edge will shrink. So what are the reasons for the shrinkage of atomic ash? Next, Changxing Baodi atomic ash factory will discuss this problem with you. If you are interested in this knowledge, let's have a look.
What are the reasons for the shrinkage of atomic ash?
1. The coating of atomic ash is too thick, and the coating is carried out under the condition of not completely dry, especially when the atomic ash and filler are coated on the junction slope, the drying is relatively slow, and if the coating is carried out under the condition of insufficient hardening, it is easy to produce shrinkage.
2. If the film is too thick, the solvent in the middle layer will etch the interface between the atomic ash and the old film, so it will shrink.
3. The diluent and buffer of the middle film coating and the top coat coating on the top of the atomic ash are used excessively or the coating is diluted too thinly.
Now you know the reasons for the shrinkage of atomic ash! If you want to learn more about atomic ash industry, please pay attention to the official website of Changxing Baodi atomic ash factory www.cxbaodi.com , we will update more wonderful content for you from time to time.