No flies, no Bush league stuff, no crapola.
I was making some sandpaper storage units, got tired of having curled paper, or having to sift through tons of different grades/ manufacturers. And tired of lining up holes on my ROS.
Anyway I started using up some different papers.
I have a load of Mirka, and a little 3x Norton, regular Norton, and 3M Freecut.
The mirka white paper is useless. I have to use it up. In a few strokes there is no grit left. It turns a gray and is pretty much gone...
Mirka gold, is quite a bit better than the white. It last much longer.
3M freecut gold ... lasts quite a bit, but turns the wood gold or yellow.
Norton Gold regular, like the Mirka it lasts pretty ok.
Norton 3x AWESOME... it lasts and lasts. The grit just hangs in there, it doesn't load up the same as the stuff above. I don't know what it is about this stuff, but it will be what I buy going forward. I have not tried Klingspor, So I can't compare.