Manufacturing Process of Velcro Sanding Disc
Velcro sanding disc features a fine-fiber structure, and its manufacturing process primarily involves the following steps:
1. Raw Material Preparation:
Pre-processing of base materials-such as base paper, treated cloth backing, and composite backing-along with adhesives, additives, and bonding agents.
2. Coated Abrasive Manufacturing:
Trademarks are printed on the back of the prepared base material. Subsequently, adhesive and abrasive grains are applied to the front (including electrostatic grain coating), followed by pre-drying, a secondary adhesive coating, and a final drying process to cure and firmly bond the abrasives.
3. Velcro Backing Application:
Adhesive is applied to both the backing fabric and the printed coated abrasive roll. The materials undergo heavy-duty pressing and heat drying to cure the adhesive, ensuring the fabric and sandpaper backing fuse completely to form a large master roll.
4. Punching and Slitting:
The finished master roll (with the backing fabric bonded and set) is mounted onto a punching machine. It is cut into specific sizes, then boxed and sealed for packaging.
Features of Velcro Sanding Disc
Superior Polishing Results
The fabric backing allows the sandpaper to conform more closely to the workpiece surface, resulting in a better polishing finish.
Extended Service Life
Thanks to its dense fabric backing, the abrasive grains are less likely to shed, giving the sandpaper a longer lifespan than standard varieties.
Efficient Use of Abrasive Material
A unique manufacturing process ensures efficient utilization of the abrasive material, thereby reducing production costs.
Widespread Applications of Velcro Sanding Disc
Velcro sanding discs are widely used for grinding and polishing tasks across industries such as furniture manufacturing, automotive production, shipbuilding, and mold making. In the furniture industry, they are used to grind and polish wood surfaces, resulting in a smoother finish. In the automotive industry, they are employed to grind and polish steel structural components-such as vehicle frames and wheel hubs-thereby enhancing the surface finish of the vehicle body.
