For my 5" Mirka there is an intermediate thin pad, hook on one side and loop on the other. It goes on the sander to cure exactly the problem you describe. The company thinks of them as a consumable, though mine last for several years. Look up "Mirka pad protector" on the net. I expect it would work on other brands. There is also something called an "interface pad", but that is a thicker sponge used for rounded surfaces.


Terry T.