While not as rough as the medium grit version (9090NA) this sanding screen is still not what I would call 'Fine'. Use this with a very light touch and make several passes though, and you can get a finished surface out of it with a little practice (I "practiced" on a ceiling joint that used to separate two rooms before moving on the more visible wall joints). I still followed up with a 320 grit sanding sponge to soften things out, but that was more like a swipe here and there across the surface. Use the sanding screen with a vacuum of some sort and you have virtually no dust at all.