Different Particle Sizes of Nylon Grinding Discs Are Suitable for Various Scenarios

Here is the detailed introduction:

• Coarse-grained (such as 60#, 80# - 120#): Suitable for scenarios where a large amount of material needs to be removed quickly or for rough surface treatment. For instance, in metal processing, for the rough edges and burrs of castings and forgings, a preliminary grinding is carried out; and in wood processing, for the uneven surfaces of products, quick grinding is conducted or surface degreasing and rust removal treatment is performed.

• Medium grit (such as 150#, 180# - 240#): Commonly used for general grinding and surface treatment. In automotive repair, for instance, when sanding the scratched body to prepare for subsequent painting, or in plastic processing, for example, when smoothing the surface of injection molded parts to achieve a certain degree of smoothness, medium grit sanding discs can be used.

• Fine-grained (such as 320# - 600#): Mainly used for fine grinding and polishing. It is used for the final polishing treatment of metal surfaces to make them smooth and shiny; in the manufacturing of electronic product shells, it is used for fine grinding of plastic or metal shells, and polishing of ceramic and stone surfaces to achieve good appearance and touch sensation.

• Ultra-fine-grained (800# and above): Suitable for scenarios where extremely high surface finish is required. For instance, it is applicable to the fine polishing of the surfaces of high-end musical instruments, as well as the surface treatment of some high-end precision instrument components, which can achieve a smooth effect on the surface.