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This is my opinion only. I am sure there are people here who know much more.
It's okay but I have had more luck purchasing the "bonus boxes from Klingspor's.
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The stuff I have used leaves an irregular scratch pattern, with some deeper than you would expect from that grit level. I will sometimes use it for very coarse work if I have some left over from mudding, but would not trust it in higher grits. If you do want to experiment, be sure to work it over some scrap wood first to get rid of some of the peaks and irregularities.
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I've used Mirka for years and absolutely love it. Does a great job & lasts for forever. Got some of the drywall sanding mesh you mentioned at the flea market one time & it didn't work well at all.
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Arlin,
Having used both drywall screen and Abranet, comparing them is like comparing burlap and silk. Abranet is much finer and more flexible than drywall screen. The two are not, in my opinion, interchangeable.
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I have some 3M sanding rolls (1.5"wide?) made for the automotive finishing industry. Grit is uniform and works well. Looks similar to the others but I assume better quality control.
I only use it when sanding green before taking off the lathe to remove tool marks, etc. to ease final sanding after drying.
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I don't keep up with new stuff, I'm actually really bad at that, so bear with me. I think the drywall sanding nets are silicon carbide abrasive. Isn't abranet aluminum oxide, or an aluminum oxide/ceramic composite? If that is the case, aside from quality and consistency problems, you are not using the same abrasive. Silicon carbide abrasive is great stuff, and for those tasks it is well suited to it is uniquely qualified. Where it is not well suited, it can do as much harm as it can do good.