3M  236U 6" inch  hoop and loop Disc 60# -800# for metal,automotive,furniture etc.

The sand of the hoop and loop disc sandpaper is open coated, and the particles are separated from each other ,so the sandpaper is more flexible, which helps the sandpaper to prevent clogging.Beside, the sandpaper also be coated with stearate, which means a dry lubricant is coated to the abrasive. Stearated paper are useful in sanding coats of finish and paint as the stearate "soap" prevents clogging and increases the useful life of the sandpaper. 

The hoop and loop disc is based on the large sandpaper back flocking, and then through the stamping machine with various types of stamping out. General product specifications are: Round/Rectangle/Triangle shape with holes or no hole. The feature of hoop and loop Disc is the back flocking. Compared with adhesive sand disc, hoop and loop disc can be easier replacement and grinding efficiency are better with a greater degree of improvement of abrasion resistance.What's more, hoop and loop disc also can be soaked in water grinding.