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What are the causes of paint dropping of fingerprint-proof coatings?

发布者:管理员   日期:2019-10-15

The application of anti-fingerprint oil on stainless steel substrates is now very extensive. However, in the process of providing services to customers, it was found that the anti-fingerprint oil coating of the same formula encountered poor adhesion and simple paint detachment in some customers' friends. When our engineers assisted in the processing, the following problems were found to cause the stainless steel anti-fingerprint oil to be applied on the surface of the stainless steel substrate, which caused the adhesion to be poor and the paint to fall off. So what is the reason for presenting these situations?
1. The pretreatment of the stainless steel substrate is not done well: the decorative effect and the protective effect of the coating are not only related to the properties of the metal substrate and the paint itself, but also directly related to the selection of the metal pretreatment process. The pre-painting process and quality determine the adhesion of the coating to the substrate, and the adhesion is closely related to the coating protection properties. There are many kinds of external pretreatment methods for stainless steel metal substrates, which are mainly selected in combination with the structural characteristics, scale and output value of the coated materials. The primary purpose of the pretreatment is to remove the foreign matter on the surface of the substrate together to obtain a suitable surface roughness to facilitate better adhesion of the coating. Traditional external pretreatment methods include sanding, pickling passivation, and sand blasting.
2, the curing temperature and baking time of the paint film are not qualified: our company's stainless steel water-based anti-fingerprint oil baking temperature is 180 ° C, baking time is 30 minutes, can also be 200 ° C, baking for 20 minutes, you must press this Standard curing of the paint film, temperature and time failure directly affect the adhesion of the paint film.
3, the construction of the paint film is too thick, resulting in poor adhesion: our company's water-based anti-fingerprint oil uses the latest nano-hybrid skills, thin coating 5 ~ 8μm, coating cost is lower.
4, stainless steel anti-fingerprint oil quality is not qualified: the adhesion of coatings and stainless steel substrates is not good, the appearance of stainless steel substrates is generally more lubricated, the requirements for coatings are higher.
BEYINE TECHNOLOGY(SZ)CO.,LTD.
Contact: Mr.Huang
Mobile:18123928085
Tel:0755-36850088
Fax:00852-81690207
E-mail:2501625599@qq.com
Website:www.beyine.cn
Add:No. 19, Fortress Road, Lisonglang, Gongming Street, Shenzhen
友情链接: 精密五金配件 条码打印机厂家 贴片自恢复保险丝 喷粉电泳丝 单双面铝基板 4k液晶拼接屏
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