... of scratching or damaging its surface. With a 6-micron (uM) grit, these versatile polishing pads can help ensure there are ... uniform polyester backing.*9,6,3,1 um diamond polish film and 0.05 um aluminum oxide polish film are usedin polish ... .:112 mmFilm micron grade:9 um , Diamond , Blue ( 3M-9D )6 um , Diamond , Clear ( 3M-6D )3 um , Diamond , Pink ( 3M-3D )1 ...