|3M MICROFINISHING FILM PSA DISCS
A high strength polyester film backing is coated with premium aluminum oxide particles that are micron-graded so that each is the same size adding for great cutting efficiency. They are resin-bonded to increase durability. This fast cutting abrasive provides precise, consistent, close tolerance finishes.
Great for deburring and polishing with your flexshaft. Pressure Sensitive Adhesive or PSA abrasive discs feature a stick back for easy application and removal from special mandrels. These discs hold fast and won't shift while polishing. You simply peel off the paper backing from the PSA disc and stick it onto the mandrel's pad. This configuration of disc allows you full use of the abrasive surface when polishing.