Wide Applications and Existing Problems of Sandpaper

Sandpaper is a member of coated abrasives, whose regular structure can ensure uniform grinding effect and reduce the difference of grinding. It is widely used for grinding and polishing mobile phones, cameras and laptops, and can also do wiredrawing and polishing if it is made into abrasive belt.

Our mobile phones such as Huawei, Samsung, Apple, etc. all need grinding, wiredrawing and polishing. Sandpaper can be made into precision abrasive belt, used for fine grinding of machinery bearings.

In addition, sandpaper is widely used in automobile shell parts, watches’ watchcase, furniture, stainless steel and other workpieces’ grinding and polishing, whose effect is significant. Although it has high efficiency, energy conservation, environmental protection, etc. there are still some problems, such as sanding marks.

The reasons mainly include:

A. The sandpaper used for polishing metal surface or putty is too coarse and thick, so the groove marks and scratches show through the paint. B. Intermediate paint does not dry or is too soft before polishing. C. Before paint spraying, the cut off work is not well done.

The prevention methods include:

A. Sandpaper should be used for polishing specific substrate according to manufacturers’ recommendation. B. The material must harden thoroughly before polishing. C. The intermediate painting and finish paint should have normal thickness.

What’s more, the affected scope should be completely polished and repainted. More information about sandpaper and coated abrasives, please visit the following abrasives companies: ZHEGNZHOU BOSDI ABRASIVES CO.,LTD., Zhengzhou Feilaike Abrasive Materials Co., Ltd., Luoyang Xiwei Abrasives Co., Ltd., Zhengzhou Yayun Abrasives Co., Ltd., etc.