Sandpaper polishing techniques

Coarse sponge sand with a mesh size of 300 or less (as will be introduced later) is used for peeling and shaping, and then 600 grit Warrior sandpaper is used for peeling and polishing. Generally, after polishing the high-quality amber with a mesh size of 600, it can be roughly seen. When polishing, the cross polishing method is used, first horizontal polishing, and then vertical polishing. At this point, the owner needs to talk about the use of old sandpaper. Use the old 600 grit sandpaper to slightly apply force on the surface of the amber, circle polishing, which is more helpful for polishing the amber behind. As the old sandpaper, regardless of particle size and softness, is better than the new sandpaper, it can be polished more appropriately. The grinding direction should be straight to each other, so it is easy to see whether the marks on the previous sandpaper have been worn off. For example, if number 100 is vertical grinding, then number 400 is horizontal grinding, and number 1000 is changed back to vertical grinding. After constantly changing the sandpaper of the next size, the direction of friction is the same as the current straight. Other ideas suggest using sandpaper pads on your hands to grind, rather than putting sandpaper on a table to grind. Unless you want to grind a flat surface, it is still better to use sandpaper pads on your hands to grind curved surfaces. At the beginning of each number of sandpaper, the force is slightly higher, and gradually decreases as the next number is about to change.

During the polishing process, it is often necessary to be careful when using # 1200 and # 1500 sandpaper to prevent scratches and burns on the surface of the workpiece. Horizontal and vertical, when polishing with different types of sandpaper, two different directions and perspectives should be selected for polishing. To prevent the appearance of scratches and burns during the polishing process.