how to choose sanding paper disc?

Sandpaper discs are circular abrasive tools designed for efficient sanding and are widely used for surface treatment of materials such as metal, wood, and jewelry. Below is some key information:

I. Main Types and Features

‌Perforated Disc Sandpaper‌

Designed with vent holes to reduce dust accumulation, it's suitable for high-speed mechanical sanding and is commonly used for paint finishing and hard material processing.

‌Non-Perforated Disc Sandpaper‌

Suitable for general sanding applications, but requires dust collection equipment for dust control.

‌Adhesive Sponge Sandpaper‌

Soft and conformable to curved surfaces, suitable for wet or dry use, and suitable for precision polishing (such as with electric grinder accessories).

 

II. Typical Applications

‌Industrial Applications‌

Metal Rust Removal, Plastic Polishing, and Automotive Paint Restoration.

‌Handmade Applications‌

Wood Rounding and Jewelry Detailing.

‌Specialty Materials‌

Jade Polishing and Metallographic Polishing.

 

III. Purchasing and Usage Recommendations

‌Grit Selection‌
Sanding progresses from coarse to fine (e.g., 60# → 240# → 1000#). Sandpaper can be cut to fit complex curved surfaces.

‌Tool Compatibility‌
Disc sandpaper must be secured to a rotating tray or handheld sander. Adhesive-backed sandpaper can be directly attached to the connecting rod of an electric sander.

‌Dust Control‌
It is recommended to use an industrial vacuum cleaner. Especially for models with holes, the exhaust vents should be cleaned regularly.