1. Polyester cloth backing materials tend to be stronger, and as such, may yield longer life in heavy duty applications.
Polyester backed materials also have the advantage of being water resistant, so can be used with water as coolant
(only oil based coolants can be used with cotton backed materials)
2. Grinding and polishing the complex surface of metal and stainless steel, cast iron products, wooden aricles ,
eliminating the surface rust, lacquer paint, burr and welds, to make the finishing process more perfect .
3. Special for making flap wheel, small sand belt, wide sanding belt , flap disc.