Aozhong 6-inch 49-hole green polyester film sanding disc (P120) is specifically designed for automotive refinishing, primer sanding, putty sanding, wood finishing, composite material sanding, and pre-paint surface preparation. This product features a 150 mm sanding disc, P120 grit, polyester film backing, hook-and-loop fastening, and a 49-hole dust collection design.
This product is specifically developed for users who require a balance of hole alignment, disc change speed, edge wear resistance, dust collection efficiency, and sanding mark control. Compared to paper-backed sanding discs, the polyester film backing helps the disc maintain its shape during mechanical sanding and ensures even distribution of sanding pressure on both flat and curved surfaces.
The P120 grit size follows the P-grade abrasive system used for coated abrasives. The ISO 6344-2:2021 standard covers the P12 to P220 macro-grit range for coated abrasive products, including the grit distribution of aluminum oxide and silicon carbide.
The structure of this product is based on coated grinding wheel specifications, combining abrasive grains, resin bonding, polyester film backing, hook-and-loop backing, and a 49-hole dust-exhaust distribution.
This product uses a polyester film backing to improve tear resistance and help maintain a sharp edge during grinding. The hook-and-loop backing supports secure attachment and fast replacement during sanding or grinding operations.
Abrasive grains
Resin bonding system
Polyester film backing
Hook-and-loop backing
49-hole dust-exhaust distribution
Abrasive grains form the working surface of the coated grinding wheel and perform the sanding, grinding, and surface preparation function.
The resin bonding system fixes the abrasive grains onto the backing and supports stable cutting performance during use.
The polyester film backing provides tear resistance and helps maintain a sharp edge during grinding and sanding operations.
The hook-and-loop backing is used to secure the grinding wheel to a compatible pad and allows faster replacement during operation.
The 49-hole distribution supports dust exhaust across the grinding surface, helping reduce dust accumulation and improve process stability when used with compatible extraction systems.
This sanding disc is suitable for automotive repair, woodworking, metal surface pretreatment, composite material sanding, and dry sanding processes with dust collection systems.
For B2B buyers, primary application scenarios include bulk supply to repair shops, body shops, furniture factories, paint pretreatment production lines, and abrasive processing projects.
Suitable for dry sanding in conjunction with a dust collection system, helping support cleaner operation, improved surface visibility, and more stable sanding performance.
